Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Kerberos vulnerabilities
Informations
Name USN-2310-1 First vendor Publication 2014-08-11
Vendor Ubuntu Last vendor Modification 2014-08-11
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:C/I:C/A:C)
Cvss Base Score 8.5 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in Kerberos.

Software Description: - krb5: MIT Kerberos Network Authentication Protocol

Details:

It was discovered that Kerberos incorrectly handled certain crafted Draft 9 requests. A remote attacker could use this issue to cause the daemon to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. (CVE-2012-1016)

It was discovered that Kerberos incorrectly handled certain malformed KRB5_PADATA_PK_AS_REQ AS-REQ requests. A remote attacker could use this issue to cause the daemon to crash, resulting in a denial of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS. (CVE-2013-1415)

It was discovered that Kerberos incorrectly handled certain crafted TGS-REQ requests. A remote authenticated attacker could use this issue to cause the daemon to crash, resulting in a denial of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS. (CVE-2013-1416)

It was discovered that Kerberos incorrectly handled certain crafted requests when multiple realms were configured. A remote attacker could use this issue to cause the daemon to crash, resulting in a denial of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS. (CVE-2013-1418, CVE-2013-6800)

It was discovered that Kerberos incorrectly handled certain invalid tokens. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be used to cause the daemon to crash, resulting in a denial of service. (CVE-2014-4341, CVE-2014-4342)

It was discovered that Kerberos incorrectly handled certain mechanisms when used with SPNEGO. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be used to cause clients to crash, resulting in a denial of service. (CVE-2014-4343)

It was discovered that Kerberos incorrectly handled certain continuation tokens during SPNEGO negotiations. A remote attacker could use this issue to cause the daemon to crash, resulting in a denial of service. (CVE-2014-4344)

Tomas Kuthan and Greg Hudson discovered that the Kerberos kadmind daemon incorrectly handled buffers when used with the LDAP backend. A remote attacker could use this issue to cause the daemon to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-4345)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04 LTS:
krb5-admin-server 1.12+dfsg-2ubuntu4.2
krb5-kdc 1.12+dfsg-2ubuntu4.2
krb5-kdc-ldap 1.12+dfsg-2ubuntu4.2
krb5-otp 1.12+dfsg-2ubuntu4.2
krb5-pkinit 1.12+dfsg-2ubuntu4.2
krb5-user 1.12+dfsg-2ubuntu4.2
libgssapi-krb5-2 1.12+dfsg-2ubuntu4.2
libgssrpc4 1.12+dfsg-2ubuntu4.2
libk5crypto3 1.12+dfsg-2ubuntu4.2
libkadm5clnt-mit9 1.12+dfsg-2ubuntu4.2
libkadm5srv-mit9 1.12+dfsg-2ubuntu4.2
libkdb5-7 1.12+dfsg-2ubuntu4.2
libkrad0 1.12+dfsg-2ubuntu4.2
libkrb5-3 1.12+dfsg-2ubuntu4.2
libkrb5support0 1.12+dfsg-2ubuntu4.2

Ubuntu 12.04 LTS:
krb5-admin-server 1.10+dfsg~beta1-2ubuntu0.5
krb5-kdc 1.10+dfsg~beta1-2ubuntu0.5
krb5-kdc-ldap 1.10+dfsg~beta1-2ubuntu0.5
krb5-pkinit 1.10+dfsg~beta1-2ubuntu0.5
krb5-user 1.10+dfsg~beta1-2ubuntu0.5
libgssapi-krb5-2 1.10+dfsg~beta1-2ubuntu0.5
libgssrpc4 1.10+dfsg~beta1-2ubuntu0.5
libk5crypto3 1.10+dfsg~beta1-2ubuntu0.5
libkadm5clnt-mit8 1.10+dfsg~beta1-2ubuntu0.5
libkadm5srv-mit8 1.10+dfsg~beta1-2ubuntu0.5
libkdb5-6 1.10+dfsg~beta1-2ubuntu0.5
libkrb5-3 1.10+dfsg~beta1-2ubuntu0.5
libkrb5support0 1.10+dfsg~beta1-2ubuntu0.5

Ubuntu 10.04 LTS:
krb5-admin-server 1.8.1+dfsg-2ubuntu0.13
krb5-kdc 1.8.1+dfsg-2ubuntu0.13
krb5-kdc-ldap 1.8.1+dfsg-2ubuntu0.13
krb5-pkinit 1.8.1+dfsg-2ubuntu0.13
krb5-user 1.8.1+dfsg-2ubuntu0.13
libgssapi-krb5-2 1.8.1+dfsg-2ubuntu0.13
libgssrpc4 1.8.1+dfsg-2ubuntu0.13
libk5crypto3 1.8.1+dfsg-2ubuntu0.13
libkadm5clnt-mit7 1.8.1+dfsg-2ubuntu0.13
libkadm5srv-mit7 1.8.1+dfsg-2ubuntu0.13
libkdb5-4 1.8.1+dfsg-2ubuntu0.13
libkrb5-3 1.8.1+dfsg-2ubuntu0.13
libkrb5support0 1.8.1+dfsg-2ubuntu0.13

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2310-1
CVE-2012-1016, CVE-2013-1415, CVE-2013-1416, CVE-2013-1418,
CVE-2013-6800, CVE-2014-4341, CVE-2014-4342, CVE-2014-4343,
CVE-2014-4344, CVE-2014-4345

Package Information:
https://launchpad.net/ubuntu/+source/krb5/1.12+dfsg-2ubuntu4.2
https://launchpad.net/ubuntu/+source/krb5/1.10+dfsg~beta1-2ubuntu0.5
https://launchpad.net/ubuntu/+source/krb5/1.8.1+dfsg-2ubuntu0.13

Original Source

Url : http://www.ubuntu.com/usn/USN-2310-1

CWE : Common Weakness Enumeration

% Id Name
56 % CWE-476 NULL Pointer Dereference
11 % CWE-415 Double Free
11 % CWE-189 Numeric Errors (CWE/SANS Top 25)
11 % CWE-125 Out-of-bounds Read
11 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:20746
 
Oval ID: oval:org.mitre.oval:def:20746
Title: RHSA-2013:0656: krb5 security update (Moderate)
Description: The pkinit_check_kdc_pkid function in plugins/preauth/pkinit/pkinit_crypto_openssl.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 and 1.11.x before 1.11.1 does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ request.
Family: unix Class: patch
Reference(s): RHSA-2013:0656-01
CESA-2013:0656
CVE-2012-1016
CVE-2013-1415
Version: 31
Platform(s): Red Hat Enterprise Linux 6
CentOS Linux 6
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21099
 
Oval ID: oval:org.mitre.oval:def:21099
Title: RHSA-2013:0748: krb5 security update (Moderate)
Description: The prep_reprocess_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.5 does not properly perform service-principal realm referral, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS-REQ request.
Family: unix Class: patch
Reference(s): RHSA-2013:0748-01
CESA-2013:0748
CVE-2013-1416
Version: 4
Platform(s): Red Hat Enterprise Linux 6
CentOS Linux 6
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23680
 
Oval ID: oval:org.mitre.oval:def:23680
Title: ELSA-2013:0656: krb5 security update (Moderate)
Description: The pkinit_check_kdc_pkid function in plugins/preauth/pkinit/pkinit_crypto_openssl.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 and 1.11.x before 1.11.1 does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ request.
Family: unix Class: patch
Reference(s): ELSA-2013:0656-01
CVE-2012-1016
CVE-2013-1415
Version: 13
Platform(s): Oracle Linux 6
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:24122
 
Oval ID: oval:org.mitre.oval:def:24122
Title: ELSA-2013:0748: krb5 security update (Moderate)
Description: The prep_reprocess_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.5 does not properly perform service-principal realm referral, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS-REQ request.
Family: unix Class: patch
Reference(s): ELSA-2013:0748-01
CVE-2013-1416
Version: 6
Platform(s): Oracle Linux 6
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25491
 
Oval ID: oval:org.mitre.oval:def:25491
Title: DSA-3000-1 krb5 - security update
Description: Several vulnerabilities were discovered in krb5, the MIT implementation of Kerberos.
Family: unix Class: patch
Reference(s): DSA-3000-1
CVE-2014-4341
CVE-2014-4342
CVE-2014-4343
CVE-2014-4344
CVE-2014-4345
Version: 3
Platform(s): Debian GNU/Linux 7.0
Debian GNU/kFreeBSD 7.0
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25702
 
Oval ID: oval:org.mitre.oval:def:25702
Title: SUSE-SU-2013:1875-1 -- Security update for krb5
Description: This update for krb5 fixes the following security issue: * If a KDC serves multiple realms, certain requests could cause setup_server_realm() to dereference a null pointer, crashing the KDC. (CVE-2013-1418) Security Issues: * CVE-2013-1418 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1418 >
Family: unix Class: patch
Reference(s): SUSE-SU-2013:1875-1
CVE-2013-1418
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25740
 
Oval ID: oval:org.mitre.oval:def:25740
Title: SUSE-SU-2013:0558-1 -- Security update for Kerberos 5
Description: This update for Kerberos 5 fixes one security issue: The KDC plugin for PKINIT can dereference a null pointer when processing malformed packets, leading to a crash of the KDC process. (bnc#806715, CVE-2013-1415) Additionally, it improves compatibility with processes that handle large numbers of open files. (bnc#787272)
Family: unix Class: patch
Reference(s): SUSE-SU-2013:0558-1
CVE-2013-1415
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): Kerberos 5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25901
 
Oval ID: oval:org.mitre.oval:def:25901
Title: SUSE-SU-2014:1028-1 -- Security update for krb5
Description: This MIT krb5 update fixes a buffer overrun problem in kadmind.
Family: unix Class: patch
Reference(s): SUSE-SU-2014:1028-1
CVE-2014-4345
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26458
 
Oval ID: oval:org.mitre.oval:def:26458
Title: USN-2310-1 -- krb5 vulnerabilities
Description: Several security issues were fixed in Kerberos.
Family: unix Class: patch
Reference(s): USN-2310-1
CVE-2012-1016
CVE-2013-1415
CVE-2013-1416
CVE-2013-1418
CVE-2013-6800
CVE-2014-4341
CVE-2014-4342
CVE-2014-4343
CVE-2014-4344
CVE-2014-4345
Version: 3
Platform(s): Ubuntu 14.04
Ubuntu 12.04
Ubuntu 10.04
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26536
 
Oval ID: oval:org.mitre.oval:def:26536
Title: ELSA-2014-1245 -- krb5 security and bug fix update (Moderate)
Description: Kerberos is an authentication system which allows clients and services to authenticate to each other with the help of a trusted third party, a Kerberos Key Distribution Center (KDC). It was found that if a KDC served multiple realms, certain requests could cause the setup_server_realm() function to dereference a NULL pointer. A remote, unauthenticated attacker could use this flaw to crash the KDC using a specially crafted request. (CVE-2013-1418, CVE-2013-6800) A NULL pointer dereference flaw was found in the MIT Kerberos SPNEGO acceptor for continuation tokens. A remote, unauthenticated attacker could use this flaw to crash a GSSAPI-enabled server application. (CVE-2014-4344) A buffer over-read flaw was found in the way MIT Kerberos handled certain requests. A man-in-the-middle attacker with a valid Kerberos ticket who is able to inject packets into a client or server application&#39;s GSSAPI session could use this flaw to crash the application. (CVE-2014-4341) This update also fixes the following bugs: * Prior to this update, the libkrb5 library occasionally attempted to free already freed memory when encrypting credentials. As a consequence, the calling process terminated unexpectedly with a segmentation fault. With this update, libkrb5 frees memory correctly, which allows the credentials to be encrypted appropriately and thus prevents the mentioned crash. (BZ#1004632) * Previously, when the krb5 client library was waiting for a response from a server, the timeout variable in certain cases became a negative number. Consequently, the client could enter a loop while checking for responses. With this update, the client logic has been modified and the described error no longer occurs. (BZ#1089732) All krb5 users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the krb5kdc daemon will be restarted automatically.
Family: unix Class: patch
Reference(s): ELSA-2014-1245
CVE-2014-4344
CVE-2014-4341
CVE-2013-1418
CVE-2013-6800
Version: 3
Platform(s): Oracle Linux 5
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26718
 
Oval ID: oval:org.mitre.oval:def:26718
Title: RHSA-2014:1255: krb5 security update (Moderate)
Description: Kerberos is an authentication system which allows clients and services to authenticate to each other with the help of a trusted third party, a Kerberos Key Distribution Center (KDC). A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind. (CVE-2014-4345) All krb5 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the krb5kdc and kadmind daemons will be restarted automatically.
Family: unix Class: patch
Reference(s): RHSA-2014:1255-00
CVE-2014-4345
CESA-2014:1255
Version: 5
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26722
 
Oval ID: oval:org.mitre.oval:def:26722
Title: AIX NAS null deref in SPNEGO acceptor
Description: The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.
Family: unix Class: vulnerability
Reference(s): CVE-2014-4344
Version: 4
Platform(s): IBM AIX 6.1
IBM AIX 7.1
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26777
 
Oval ID: oval:org.mitre.oval:def:26777
Title: RHSA-2014:1245: krb5 security and bug fix update (Moderate)
Description: Kerberos is an authentication system which allows clients and services to authenticate to each other with the help of a trusted third party, a Kerberos Key Distribution Center (KDC). It was found that if a KDC served multiple realms, certain requests could cause the setup_server_realm() function to dereference a NULL pointer. A remote, unauthenticated attacker could use this flaw to crash the KDC using a specially crafted request. (CVE-2013-1418, CVE-2013-6800) A NULL pointer dereference flaw was found in the MIT Kerberos SPNEGO acceptor for continuation tokens. A remote, unauthenticated attacker could use this flaw to crash a GSSAPI-enabled server application. (CVE-2014-4344) A buffer over-read flaw was found in the way MIT Kerberos handled certain requests. A man-in-the-middle attacker with a valid Kerberos ticket who is able to inject packets into a client or server application's GSSAPI session could use this flaw to crash the application. (CVE-2014-4341) This update also fixes the following bugs: * Prior to this update, the libkrb5 library occasionally attempted to free already freed memory when encrypting credentials. As a consequence, the calling process terminated unexpectedly with a segmentation fault. With this update, libkrb5 frees memory correctly, which allows the credentials to be encrypted appropriately and thus prevents the mentioned crash. (BZ#1004632) * Previously, when the krb5 client library was waiting for a response from a server, the timeout variable in certain cases became a negative number. Consequently, the client could enter a loop while checking for responses. With this update, the client logic has been modified and the described error no longer occurs. (BZ#1089732) All krb5 users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the krb5kdc daemon will be restarted automatically.
Family: unix Class: patch
Reference(s): RHSA-2014:1245-00
CVE-2013-1418
CVE-2013-6800
CVE-2014-4341
CVE-2014-4344
CESA-2014:1245
Version: 5
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26809
 
Oval ID: oval:org.mitre.oval:def:26809
Title: SUSE-SU-2014:0989-1 -- Security update for krb5
Description: The several security issues have been fixed in kerberos 5.
Family: unix Class: patch
Reference(s): SUSE-SU-2014:0989-1
CVE-2014-4341
CVE-2014-4342
CVE-2014-4343
CVE-2014-4344
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26856
 
Oval ID: oval:org.mitre.oval:def:26856
Title: ELSA-2014-1255 -- krb5 security update (Moderate)
Description: Kerberos is an authentication system which allows clients and services to authenticate to each other with the help of a trusted third party, a Kerberos Key Distribution Center (KDC). A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind. (CVE-2014-4345) All krb5 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the krb5kdc and kadmind daemons will be restarted automatically.
Family: unix Class: patch
Reference(s): ELSA-2014-1255
CVE-2014-4345
Version: 3
Platform(s): Oracle Linux 5
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26907
 
Oval ID: oval:org.mitre.oval:def:26907
Title: DEPRECATED: SUSE-SU-2014:1028-1 -- Security update for krb5
Description: This MIT krb5 update fixes a buffer overrun problem in kadmind.
Family: unix Class: patch
Reference(s): SUSE-SU-2014:1028-1
CVE-2014-4345
Version: 4
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26912
 
Oval ID: oval:org.mitre.oval:def:26912
Title: AIX NAS denial of service vulnerability
Description: MIT Kerberos 5 (aka krb5) before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read and application crash) by injecting invalid tokens into a GSSAPI application session.
Family: unix Class: vulnerability
Reference(s): CVE-2014-4341
Version: 4
Platform(s): IBM AIX 6.1
IBM AIX 7.1
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26917
 
Oval ID: oval:org.mitre.oval:def:26917
Title: RHSA-2014:1389: krb5 security and bug fix update (Moderate)
Description: Kerberos is a networked authentication system which allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos KDC. It was found that if a KDC served multiple realms, certain requests could cause the setup_server_realm() function to dereference a NULL pointer. A remote, unauthenticated attacker could use this flaw to crash the KDC using a specially crafted request. (CVE-2013-1418, CVE-2013-6800) A NULL pointer dereference flaw was found in the MIT Kerberos SPNEGO acceptor for continuation tokens. A remote, unauthenticated attacker could use this flaw to crash a GSSAPI-enabled server application. (CVE-2014-4344) A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind. (CVE-2014-4345) Two buffer over-read flaws were found in the way MIT Kerberos handled certain requests. A remote, unauthenticated attacker who is able to inject packets into a client or server application's GSSAPI session could use either of these flaws to crash the application. (CVE-2014-4341, CVE-2014-4342) A double-free flaw was found in the MIT Kerberos SPNEGO initiators. An attacker able to spoof packets to appear as though they are from an GSSAPI acceptor could use this flaw to crash a client application that uses MIT Kerberos. (CVE-2014-4343) These updated krb5 packages also include several bug fixes. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.6 Technical Notes, linked to in the References section, for information on the most significant of these changes. All krb5 users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
Family: unix Class: patch
Reference(s): RHSA-2014:1389-01
CVE-2013-1418
CVE-2013-6800
CVE-2014-4341
CVE-2014-4342
CVE-2014-4343
CVE-2014-4344
CVE-2014-4345
CESA-2014:1389
Version: 5
Platform(s): Red Hat Enterprise Linux 6
CentOS Linux 6
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26961
 
Oval ID: oval:org.mitre.oval:def:26961
Title: AIX NAS double-free in SPNEGO
Description: Double free vulnerability in the init_ctx_reselect function in the SPNEGO initiator in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.10.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via network traffic that appears to come from an intended acceptor, but specifies a security mechanism different from the one proposed by the initiator.
Family: unix Class: vulnerability
Reference(s): CVE-2014-4343
Version: 4
Platform(s): IBM AIX 6.1
IBM AIX 7.1
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27019
 
Oval ID: oval:org.mitre.oval:def:27019
Title: DEPRECATED: SUSE-SU-2014:0989-1 -- Security update for krb5
Description: The several security issues have been fixed in kerberos 5.
Family: unix Class: patch
Reference(s): SUSE-SU-2014:0989-1
CVE-2014-4341
CVE-2014-4342
CVE-2014-4343
CVE-2014-4344
Version: 4
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27032
 
Oval ID: oval:org.mitre.oval:def:27032
Title: ELSA-2014-1389 -- krb5 security and bug fix update
Description: [1.10.3-33] - actually apply that last patch [1.10.3-32] - incorporate fix for MITKRB5-SA-2014-001 (CVE-2014-4345, #1128157) [1.10.3-31] - ksu: when evaluating .k5users, don't throw away data from .k5users when we're not passed a command to run, which implicitly means we're attempting to run the target user's shell (#1026721, revised) [1.10.3-30] - ksu: when evaluating .k5users, treat lines with just a principal name as if they contained the principal name followed by '*', and don't throw away data from .k5users when we're not passed a command to run, which implicitly means we're attempting to run the target user's shell (#1026721, revised) [1.10.3-29] - gssapi: pull in upstream fix for a possible NULL dereference in spnego (CVE-2014-4344, #1121510) - gssapi: pull in proposed-and-accepted fix for a double free in initiators (David Woodhouse, CVE-2014-4343, #1121510) [1.10.3-28] - correct a type mistake in the backported fix for CVE-2013-1418/CVE-2013-6800 [1.10.3-27] - pull in backported fix for denial of service by injection of malformed GSSAPI tokens (CVE-2014-4341, CVE-2014-4342, #1121510) - incorporate backported patch for remote crash of KDCs which serve multiple realms simultaneously (RT#7756, CVE-2013-1418/CVE-2013-6800, more of [1.10.3-26] - pull in backport of patch to not subsequently always require that responses come from master KDCs if we get one from a master somewhere along the way while chasing referrals (RT#7650, #1113652) [1.10.3-25] - ksu: if the -e flag isn't used, use the target user's shell when checking for authorization via the target user's .k5users file (#1026721) [1.10.3-24] - define _GNU_SOURCE in files where we use EAI_NODATA, to make sure that it's declared (#1059730) [1.10.3-23] - spnego: pull in patch from master to restore preserving the OID of the mechanism the initiator requested when we have multiple OIDs for the same mechanism, so that we reply using the same mechanism OID and the initiator doesn't get confused (#1087068, RT#7858) [1.10.3-22] - add patch from Jatin Nansi to avoid attempting to clear memory at the NULL address if krb5_encrypt_helper() returns an error when called from encrypt_credencpart() (#1055329, pull #158) [1.10.3-21] - drop patch to add additional access() checks to ksu - they shouldn't be resulting in any benefit [1.10.3-20] - apply patch from Nikolai Kondrashov to pass a default realm set in /etc/sysconfig/krb5kdc to the kdb_check_weak helper, so that it doesn't produce an error if there isn't one set in krb5.conf (#1009389) [1.10.3-19] - packaging: don't Obsoletes: older versions of krb5-pkinit-openssl and virtual Provide: krb5-pkinit-openssl on EL6, where we don't need to bother with any of that (#1001961) [1.10.3-18] - pkinit: backport tweaks to avoid trying to call the prompter callback when one isn't set (part of #965721) - pkinit: backport the ability to use a prompter callback to prompt for a password when reading private keys (the rest of #965721) [1.10.3-17] - backport fix to not spin on a short read when reading the length of a response over TCP (RT#7508, #922884) [1.10.3-16] - backport fix for trying all compatible keys when not being strict about acceptor names while reading AP-REQs (RT#7883, #1070244)
Family: unix Class: patch
Reference(s): ELSA-2014-1389
CVE-2013-1418
CVE-2013-6800
CVE-2014-4341
CVE-2014-4344
CVE-2014-4345
CVE-2014-4342
CVE-2014-4343
Version: 4
Platform(s): Oracle Linux 6
Product(s): krb5
krb5-devel
krb5-libs
krb5-pkinit-openssl
krb5-server
krb5-server-ldap
krb5-workstation
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27142
 
Oval ID: oval:org.mitre.oval:def:27142
Title: DEPRECATED: ELSA-2013-0656 -- krb5 security update (moderate)
Description: [1.10.3-10.1] - incorporate upstream patch to fix a NULL pointer dereference when the client supplies an otherwise-normal-looking PKINIT request (CVE-2013-1415, #917909) - add patch to avoid dereferencing a NULL pointer in the KDC when handling a draft9 PKINIT request (#917909, CVE-2012-1016)
Family: unix Class: patch
Reference(s): ELSA-2013-0656
CVE-2012-1016
CVE-2013-1415
Version: 4
Platform(s): Oracle Linux 6
Product(s): krb5
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27468
 
Oval ID: oval:org.mitre.oval:def:27468
Title: DEPRECATED: ELSA-2013-0748 -- krb5 security update (moderate)
Description: [1.10.3-10.2] - incorporate upstream patch to fix a NULL pointer dereference while processing certain TGS requests (CVE-2013-1416, #950342)
Family: unix Class: patch
Reference(s): ELSA-2013-0748
CVE-2013-1416
Version: 4
Platform(s): Oracle Linux 6
Product(s): krb5
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 4
Application 66
Os 1
Os 3
Os 5
Os 2
Os 6
Os 1
Os 2
Os 5
Os 4
Os 3
Os 2

Information Assurance Vulnerability Management (IAVM)

Date Description
2013-11-14 IAVM : 2013-B-0130 - MIT Kerberos Denial of Service Vulnerabilities
Severity : Category I - VMSKEY : V0042308
2013-05-09 IAVM : 2013-B-0044 - MIT Kerberos Denial of Service Vulnerabilities
Severity : Category I - VMSKEY : V0037773

Snort® IPS/IDS

Date Description
2015-03-27 MIT Kerberos KDC as-req sname null pointer dereference attempt
RuleID : 8888889 - Revision : 1 - Type : SERVER-OTHER
2015-03-27 MIT Kerberos KDC as-req sname null pointer dereference attempt
RuleID : 8888888 - Revision : 1 - Type : SERVER-OTHER
2016-03-14 MIT Kerberos 5 IAKERB outbound token detected
RuleID : 36816 - Revision : 5 - Type : SERVER-OTHER
2016-03-14 MIT Kerberos 5 SPNEGO incoming token detected
RuleID : 36815 - Revision : 5 - Type : SERVER-OTHER
2016-03-14 MIT Kerberos 5 SPNEGO acceptor acc_ctx_cont denial of service attempt
RuleID : 36814 - Revision : 5 - Type : SERVER-OTHER
2015-06-23 MIT Kerberos KDC as-req sname null pointer dereference attempt
RuleID : 34972 - Revision : 2 - Type : SERVER-OTHER
2015-06-23 MIT Kerberos KDC as-req sname null pointer dereference attempt
RuleID : 34971 - Revision : 2 - Type : SERVER-OTHER
2014-01-10 MIT Kerberos KDC prep_reprocess_req null pointer dereference attempt
RuleID : 27906 - Revision : 3 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2018-02-01 Name : The remote Debian host is missing a security update.
File : debian_DLA-1265.nasl - Type : ACT_GATHER_INFO
2018-01-11 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL15552.nasl - Type : ACT_GATHER_INFO
2015-03-26 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20150305_krb5_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2015-03-26 Name : The remote Debian host is missing a security update.
File : debian_DLA-37.nasl - Type : ACT_GATHER_INFO
2015-03-18 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-0439.nasl - Type : ACT_GATHER_INFO
2015-03-13 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-0439.nasl - Type : ACT_GATHER_INFO
2015-03-05 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-0439.nasl - Type : ACT_GATHER_INFO
2015-02-26 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_dbf9e66cbd5011e4a7ba206a8a720317.nasl - Type : ACT_GATHER_INFO
2015-01-19 Name : The remote Solaris system is missing a security patch for third-party software.
File : solaris11_kerberos_20141216.nasl - Type : ACT_GATHER_INFO
2015-01-19 Name : The remote Solaris system is missing a security patch for third-party software.
File : solaris11_kerberos_20141120.nasl - Type : ACT_GATHER_INFO
2015-01-19 Name : The remote Solaris system is missing a security patch for third-party software.
File : solaris11_kerberos_20130924.nasl - Type : ACT_GATHER_INFO
2015-01-19 Name : The remote Solaris system is missing a security patch for third-party software.
File : solaris11_kerberos_20130716.nasl - Type : ACT_GATHER_INFO
2015-01-02 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201412-53.nasl - Type : ACT_GATHER_INFO
2014-11-26 Name : The remote OracleVM host is missing a security update.
File : oraclevm_OVMSA-2014-0034.nasl - Type : ACT_GATHER_INFO
2014-11-18 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2014-443.nasl - Type : ACT_GATHER_INFO
2014-11-12 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2014-1389.nasl - Type : ACT_GATHER_INFO
2014-11-04 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20141014_krb5_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2014-10-17 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-1389.nasl - Type : ACT_GATHER_INFO
2014-10-14 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20140916_krb5_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2014-10-14 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-1389.nasl - Type : ACT_GATHER_INFO
2014-10-14 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2014-1255.nasl - Type : ACT_GATHER_INFO
2014-10-10 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL15553.nasl - Type : ACT_GATHER_INFO
2014-10-10 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL15547.nasl - Type : ACT_GATHER_INFO
2014-10-01 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2014-1245.nasl - Type : ACT_GATHER_INFO
2014-09-18 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-1255.nasl - Type : ACT_GATHER_INFO
2014-09-18 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-1255.nasl - Type : ACT_GATHER_INFO
2014-09-18 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-1245.nasl - Type : ACT_GATHER_INFO
2014-09-16 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-1245.nasl - Type : ACT_GATHER_INFO
2014-09-12 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2014-165.nasl - Type : ACT_GATHER_INFO
2014-09-04 Name : The remote AIX host has a version of NAS installed that is affected by multip...
File : aix_nas_advisory1.nasl - Type : ACT_GATHER_INFO
2014-08-27 Name : The remote Fedora host is missing a security update.
File : fedora_2014-9305.nasl - Type : ACT_GATHER_INFO
2014-08-21 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2014-508.nasl - Type : ACT_GATHER_INFO
2014-08-16 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_krb5-140812.nasl - Type : ACT_GATHER_INFO
2014-08-15 Name : The remote Fedora host is missing a security update.
File : fedora_2014-9315.nasl - Type : ACT_GATHER_INFO
2014-08-12 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2310-1.nasl - Type : ACT_GATHER_INFO
2014-08-12 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_krb5-140729.nasl - Type : ACT_GATHER_INFO
2014-08-12 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2014-486.nasl - Type : ACT_GATHER_INFO
2014-08-10 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3000.nasl - Type : ACT_GATHER_INFO
2014-08-08 Name : The remote Fedora host is missing a security update.
File : fedora_2014-8189.nasl - Type : ACT_GATHER_INFO
2014-08-08 Name : The remote Fedora host is missing a security update.
File : fedora_2014-8176.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-941.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-880.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-401.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-224.nasl - Type : ACT_GATHER_INFO
2013-12-17 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201312-12.nasl - Type : ACT_GATHER_INFO
2013-12-04 Name : The remote Fedora host is missing a security update.
File : fedora_2013-21786.nasl - Type : ACT_GATHER_INFO
2013-11-22 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2013-275.nasl - Type : ACT_GATHER_INFO
2013-11-18 Name : A single sign-on service is affected by a denial of service vulnerability.
File : mit_kerberos_cve-2013-1418.nasl - Type : ACT_DESTRUCTIVE_ATTACK
2013-11-12 Name : The remote Fedora host is missing a security update.
File : fedora_2013-20687.nasl - Type : ACT_GATHER_INFO
2013-09-04 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2013-182.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2013-0748.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2013-0656.nasl - Type : ACT_GATHER_INFO
2013-05-01 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2013-158.nasl - Type : ACT_GATHER_INFO
2013-04-20 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2013-042.nasl - Type : ACT_GATHER_INFO
2013-04-18 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2013-0748.nasl - Type : ACT_GATHER_INFO
2013-04-18 Name : The remote Fedora host is missing a security update.
File : fedora_2013-5286.nasl - Type : ACT_GATHER_INFO
2013-04-18 Name : The remote Fedora host is missing a security update.
File : fedora_2013-5280.nasl - Type : ACT_GATHER_INFO
2013-04-17 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20130416_krb5_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2013-04-17 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2013-0748.nasl - Type : ACT_GATHER_INFO
2013-03-28 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_krb5-130306.nasl - Type : ACT_GATHER_INFO
2013-03-23 Name : The remote Fedora host is missing a security update.
File : fedora_2013-3147.nasl - Type : ACT_GATHER_INFO
2013-03-20 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2013-0656.nasl - Type : ACT_GATHER_INFO
2013-03-19 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2013-0656.nasl - Type : ACT_GATHER_INFO
2013-03-19 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20130318_krb5_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2013-03-17 Name : The remote Fedora host is missing a security update.
File : fedora_2013-3116.nasl - Type : ACT_GATHER_INFO
2013-02-24 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_f54584bc7d2b11e29bd1206a8a720317.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-08-15 00:26:18
  • Multiple Updates
2014-08-14 21:31:29
  • Multiple Updates
2014-08-14 17:24:53
  • Multiple Updates
2014-08-13 13:25:01
  • Multiple Updates
2014-08-11 17:21:07
  • First insertion