Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title krb5 security update
Informations
Name RHSA-2008:0180 First vendor Publication 2008-03-18
Vendor RedHat Last vendor Modification 2008-03-18
Severity (Vendor) Critical Revision 01

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:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated krb5 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

Kerberos is a network authentication system which allows clients and servers to authenticate to each other through use of symmetric encryption and a trusted third party, the KDC.

A flaw was found in the way the MIT Kerberos Authentication Service and Key Distribution Center server (krb5kdc) handled Kerberos v4 protocol packets. An unauthenticated remote attacker could use this flaw to crash the krb5kdc daemon, disclose portions of its memory, or possibly execute arbitrary code using malformed or truncated Kerberos v4 protocol requests. (CVE-2008-0062, CVE-2008-0063)

This issue only affected krb5kdc with Kerberos v4 protocol compatibility enabled, which is the default setting on Red Hat Enterprise Linux 4. Kerberos v4 protocol support can be disabled by adding "v4_mode=none" (without the quotes) to the "[kdcdefaults]" section of /var/kerberos/krb5kdc/kdc.conf.

Red Hat would like to thank MIT for reporting these issues.

A double-free flaw was discovered in the GSSAPI library used by MIT Kerberos. This flaw could possibly cause a crash of the application using the GSSAPI library. (CVE-2007-5971)

All krb5 users are advised to update to these erratum packages which contain backported fixes to correct these issues.

4. Solution:

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

5. Bugs fixed (http://bugzilla.redhat.com/):

415351 - CVE-2007-5971 krb5: double free in gssapi lib 432620 - CVE-2008-0062 krb5: uninitialized pointer use in krb5kdc 432621 - CVE-2008-0063 krb5: possible leak of sensitive data from krb5kdc using krb4 request

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2008-0180.html

CAPEC : Common Attack Pattern Enumeration & Classification

Id Name
CAPEC-26 Leveraging Race Conditions
CAPEC-29 Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
CAPEC-172 Time and State Attacks

CWE : Common Weakness Enumeration

% Id Name
33 % CWE-399 Resource Management Errors
33 % CWE-189 Numeric Errors (CWE/SANS Top 25)
33 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10296
 
Oval ID: oval:org.mitre.oval:def:10296
Title: Double free vulnerability in the gss_krb5int_make_seal_token_v3 function in lib/gssapi/krb5/k5sealv3.c in MIT Kerberos 5 (krb5) has unknown impact and attack vectors.
Description: Double free vulnerability in the gss_krb5int_make_seal_token_v3 function in lib/gssapi/krb5/k5sealv3.c in MIT Kerberos 5 (krb5) has unknown impact and attack vectors.
Family: unix Class: vulnerability
Reference(s): CVE-2007-5971
Version: 5
Platform(s): Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:8916
 
Oval ID: oval:org.mitre.oval:def:8916
Title: The Kerberos 4 support in KDC in MIT Kerberos 5 (krb5kdc) does not properly clear the unused portion of a buffer when generating an error message, which might allow remote attackers to obtain sensitive information, aka "Uninitialized stack values."
Description: The Kerberos 4 support in KDC in MIT Kerberos 5 (krb5kdc) does not properly clear the unused portion of a buffer when generating an error message, which might allow remote attackers to obtain sensitive information, aka "Uninitialized stack values."
Family: unix Class: vulnerability
Reference(s): CVE-2008-0063
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:9496
 
Oval ID: oval:org.mitre.oval:def:9496
Title: KDC in MIT Kerberos 5 (krb5kdc) does not set a global variable for some krb4 message types, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted messages that trigger a NULL pointer dereference or double-free.
Description: KDC in MIT Kerberos 5 (krb5kdc) does not set a global variable for some krb4 message types, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted messages that trigger a NULL pointer dereference or double-free.
Family: unix Class: vulnerability
Reference(s): CVE-2008-0062
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 38

OpenVAS Exploits

Date Description
2010-05-28 Name : Ubuntu Update for krb5 vulnerabilities USN-940-1
File : nvt/gb_ubuntu_USN_940_1.nasl
2010-04-09 Name : Ubuntu Update for krb5 vulnerabilities USN-924-1
File : nvt/gb_ubuntu_USN_924_1.nasl
2009-11-17 Name : Mac OS X Version
File : nvt/macosx_version.nasl
2009-04-09 Name : Mandriva Update for krb5 MDVSA-2008:070 (krb5)
File : nvt/gb_mandriva_MDVSA_2008_070.nasl
2009-04-09 Name : Mandriva Update for krb5 MDVSA-2008:069 (krb5)
File : nvt/gb_mandriva_MDVSA_2008_069.nasl
2009-03-23 Name : Ubuntu Update for krb5 vulnerabilities USN-587-1
File : nvt/gb_ubuntu_USN_587_1.nasl
2009-03-06 Name : RedHat Update for krb5 RHSA-2008:0164-01
File : nvt/gb_RHSA-2008_0164-01_krb5.nasl
2009-03-06 Name : RedHat Update for krb5 RHSA-2008:0180-01
File : nvt/gb_RHSA-2008_0180-01_krb5.nasl
2009-03-06 Name : RedHat Update for krb5 RHSA-2008:0181-01
File : nvt/gb_RHSA-2008_0181-01_krb5.nasl
2009-02-27 Name : CentOS Update for krb5-devel CESA-2008:0180 centos4 i386
File : nvt/gb_CESA-2008_0180_krb5-devel_centos4_i386.nasl
2009-02-27 Name : CentOS Update for krb5-devel CESA-2008:0181 centos3 x86_64
File : nvt/gb_CESA-2008_0181_krb5-devel_centos3_x86_64.nasl
2009-02-27 Name : CentOS Update for krb5-devel CESA-2008:0181 centos3 i386
File : nvt/gb_CESA-2008_0181_krb5-devel_centos3_i386.nasl
2009-02-27 Name : CentOS Update for krb5 CESA-2008:0181-01 centos2 i386
File : nvt/gb_CESA-2008_0181-01_krb5_centos2_i386.nasl
2009-02-27 Name : CentOS Update for krb5-devel CESA-2008:0180 centos4 x86_64
File : nvt/gb_CESA-2008_0180_krb5-devel_centos4_x86_64.nasl
2009-02-16 Name : Fedora Update for krb5 FEDORA-2008-2647
File : nvt/gb_fedora_2008_2647_krb5_fc8.nasl
2009-02-16 Name : Fedora Update for krb5 FEDORA-2008-2637
File : nvt/gb_fedora_2008_2637_krb5_fc7.nasl
2009-01-23 Name : SuSE Update for krb5 SUSE-SA:2008:016
File : nvt/gb_suse_2008_016.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200803-31 (mit-krb5)
File : nvt/glsa_200803_31.nasl
2008-06-17 Name : Kerberos < 1.6.4 vulnerability
File : nvt/kerberos_CB-A08-0044.nasl
2008-03-19 Name : Debian Security Advisory DSA 1524-1 (krb5)
File : nvt/deb_1524_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
43345 MIT Kerberos 5 (krb5) lib/gssapi/krb5/k5sealv3.c gss_krb5int_make_seal_token_...

43342 MIT Kerberos 5 KDC (krb5kdc) Error Response Information Disclosure

43341 MIT Kerberos 5 KDC (krb5kdc) Arbitrary Memory Disclosure

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2008-0164.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2008-0180.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2008-0181.nasl - Type : ACT_GATHER_INFO
2013-03-09 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-924-1.nasl - Type : ACT_GATHER_INFO
2013-01-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2008-0182.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20080318_krb5_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2010-05-20 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-940-1.nasl - Type : ACT_GATHER_INFO
2010-01-06 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2008-0164.nasl - Type : ACT_GATHER_INFO
2009-07-27 Name : The remote VMware ESXi / ESX host is missing one or more security-related pat...
File : vmware_VMSA-2008-0009.nasl - Type : ACT_GATHER_INFO
2009-04-23 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2008-069.nasl - Type : ACT_GATHER_INFO
2009-04-23 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2008-070.nasl - Type : ACT_GATHER_INFO
2008-03-26 Name : The remote Fedora host is missing a security update.
File : fedora_2008-2637.nasl - Type : ACT_GATHER_INFO
2008-03-26 Name : The remote Fedora host is missing a security update.
File : fedora_2008-2647.nasl - Type : ACT_GATHER_INFO
2008-03-26 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200803-31.nasl - Type : ACT_GATHER_INFO
2008-03-21 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2008-0180.nasl - Type : ACT_GATHER_INFO
2008-03-21 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1524.nasl - Type : ACT_GATHER_INFO
2008-03-19 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2008-0181.nasl - Type : ACT_GATHER_INFO
2008-03-19 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2008-0180.nasl - Type : ACT_GATHER_INFO
2008-03-19 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2008-0164.nasl - Type : ACT_GATHER_INFO
2008-03-19 Name : The remote openSUSE host is missing a security update.
File : suse_krb5-5081.nasl - Type : ACT_GATHER_INFO
2008-03-19 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_krb5-5082.nasl - Type : ACT_GATHER_INFO
2008-03-19 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-587-1.nasl - Type : ACT_GATHER_INFO
2008-03-19 Name : The remote host is missing a Mac OS X update that fixes various security issues.
File : macosx_SecUpd2008-002.nasl - Type : ACT_GATHER_INFO
2008-03-19 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2008-0181.nasl - Type : ACT_GATHER_INFO
2008-01-16 Name : The remote openSUSE host is missing a security update.
File : suse_krb5-4851.nasl - Type : ACT_GATHER_INFO
2008-01-16 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_krb5-4852.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:51:30
  • Multiple Updates