Executive Summary

Summary
Title krb5 security update
Informations
Name DSA-3153 First vendor Publication 2015-02-03
Vendor Debian Last vendor Modification 2015-02-03
Severity (Vendor) N/A Revision 1

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:L/Au:S/C:C/I:C/A:C)
Cvss Base Score 9 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Multiples vulnerabilities have been found in krb5, the MIT implementation of Kerberos:

CVE-2014-5352

Incorrect memory management in the libgssapi_krb5 library might result in denial of service or the execution of arbitrary code.

CVE-2014-9421

Incorrect memory management in kadmind's processing of XDR data might result in denial of service or the execution of arbitrary code.

CVE-2014-9422

Incorrect processing of two-component server principals might result in impersonation attacks.

CVE-2014-9423

An information leak in the libgssrpc library.

For the stable distribution (wheezy), these problems have been fixed in version 1.10.1+dfsg-5+deb7u3.

For the unstable distribution (sid), these problems have been fixed in version 1.12.1+dfsg-17.

We recommend that you upgrade your krb5 packages.

Original Source

Url : http://www.debian.org/security/2015/dsa-3153

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-284 Access Control (Authorization) Issues
50 % CWE-200 Information Exposure

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:28572
 
Oval ID: oval:org.mitre.oval:def:28572
Title: AIX NAS Denial of Service via malformed XDR data
Description: The auth_gssapi_unwrap_data function in lib/rpc/auth_gssapi_misc.c in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 does not properly handle partial XDR deserialization, which allows remote authenticated users to cause a denial of service (use-after-free and double free, and daemon crash) or possibly execute arbitrary code via malformed XDR data, as demonstrated by data sent to kadmind.
Family: unix Class: vulnerability
Reference(s): CVE-2014-9421
Version: 4
Platform(s): IBM AIX 6.1
IBM AIX 7.1
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28597
 
Oval ID: oval:org.mitre.oval:def:28597
Title: AIX NAS allows remote users to obtain administrative access by leveraging access to a two-component principal
Description: The check_rpcsec_auth function in kadmin/server/kadm_rpc_svc.c in kadmind in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 allows remote authenticated users to bypass a kadmin/* authorization check and obtain administrative access by leveraging access to a two-component principal with an initial "kadmind" substring, as demonstrated by a "ka/x" principal.
Family: unix Class: vulnerability
Reference(s): CVE-2014-9422
Version: 4
Platform(s): IBM AIX 6.1
IBM AIX 7.1
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:29035
 
Oval ID: oval:org.mitre.oval:def:29035
Title: AIX NAS denial of service vulnerability
Description: The krb5_gss_process_context_token function in lib/gssapi/krb5/process_context_token.c in the libgssapi_krb5 library in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 does not properly maintain security-context handles, which allows remote authenticated users to cause a denial of service (use-after-free and double free, and daemon crash) or possibly execute arbitrary code via crafted GSSAPI traffic, as demonstrated by traffic to kadmind.
Family: unix Class: vulnerability
Reference(s): CVE-2014-5352
Version: 4
Platform(s): IBM AIX 6.1
IBM AIX 7.1
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:29181
 
Oval ID: oval:org.mitre.oval:def:29181
Title: AIX NAS allows remote users to obtain sensitive information from process heap memory
Description: The svcauth_gss_accept_sec_context function in lib/rpc/svc_auth_gss.c in MIT Kerberos 5 (aka krb5) 1.11.x through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 transmits uninitialized interposer data to clients, which allows remote attackers to obtain sensitive information from process heap memory by sniffing the network for data in a handle field.
Family: unix Class: vulnerability
Reference(s): CVE-2014-9423
Version: 4
Platform(s): IBM AIX 6.1
IBM AIX 7.1
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 10

Nessus® Vulnerability Scanner

Date Description
2015-05-28 Name : The remote AIX host has a version of NAS installed that is affected by multip...
File : aix_nas_advisory3.nasl - Type : ACT_GATHER_INFO
2015-05-20 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-0290-2.nasl - Type : ACT_GATHER_INFO
2015-05-20 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-0290-1.nasl - Type : ACT_GATHER_INFO
2015-05-07 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2015-518.nasl - Type : ACT_GATHER_INFO
2015-04-10 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20150409_krb5_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2015-04-10 Name : The remote OracleVM host is missing a security update.
File : oraclevm_OVMSA-2015-0054.nasl - Type : ACT_GATHER_INFO
2015-04-10 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-0794.nasl - Type : ACT_GATHER_INFO
2015-04-10 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-0794.nasl - Type : ACT_GATHER_INFO
2015-04-09 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-0794.nasl - Type : ACT_GATHER_INFO
2015-03-30 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2015-069.nasl - Type : ACT_GATHER_INFO
2015-03-26 Name : The remote Debian host is missing a security update.
File : debian_DLA-146.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
2015-03-18 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
2015-03-13 Name : The remote Fedora host is missing a security update.
File : fedora_2015-2347.nasl - Type : ACT_GATHER_INFO
2015-03-10 Name : The remote Fedora host is missing a security update.
File : fedora_2015-2382.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
2015-02-23 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_63527d0db9de11e48a48206a8a720317.nasl - Type : ACT_GATHER_INFO
2015-02-12 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_krb5-20150206-150206.nasl - Type : ACT_GATHER_INFO
2015-02-12 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-128.nasl - Type : ACT_GATHER_INFO
2015-02-11 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2498-1.nasl - Type : ACT_GATHER_INFO
2015-02-05 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_24ce5597acab11e4a847206a8a720317.nasl - Type : ACT_GATHER_INFO
2015-02-04 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3153.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2015-02-19 21:27:40
  • Multiple Updates
2015-02-19 17:26:11
  • Multiple Updates
2015-02-05 13:23:50
  • Multiple Updates
2015-02-04 00:21:40
  • First insertion