CentOS Update for glibc CESA-2011:0412 centos5 x86_64

Published: 2012-07-30 11:54:58
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Summary:
The remote host is missing an update for the 'glibc' Linux Distribution Package(s) announced via the referenced advisory.

Affected Versions:
glibc on CentOS 5

Recommendations:
Please install the updated Linux Distribution Packages.

Technical Details:
The glibc Linux Distribution Packages contain the standard C libraries used by multiple programs on the system. These Linux Distribution Packages contain the standard C and the standard math libraries. Without these two libraries, a Linux system cannot function properly. The fix for CVE-2010-3847 introduced a regression in the way the dynamic loader expanded the $ORIGIN dynamic string token specified in the RPATH and RUNPATH entries in the ELF library header. A local attacker could use this flaw to escalate their privileges via a setuid or setgid program using such a library. (CVE-2011-0536) It was discovered that the glibc addmntent() function did not sanitize its input properly. A local attacker could possibly use this flaw to inject malformed lines into /etc/mtab via certain setuid mount helpers, if the attacker were allowed to mount to an arbitrary directory under their control. (CVE-2010-0296) It was discovered that the glibc fnmatch() function did not properly restrict the use of alloca(). If the function was called on sufficiently large inputs, it could cause an application using fnmatch() to crash or, possibly, execute arbitrary code with the privileges of the application. (CVE-2011-1071) It was discovered that the locale command did not produce properly escaped output as required by the POSIX specification. If an attacker were able to set the locale environment variables in the environment of a script that performed shell evaluation on the output of the locale command, and that script were run with different privileges than the attacker's, it could execute arbitrary code with the privileges of the script. (CVE-2011-1095) All users should upgrade to these updated Linux Distribution Packages, which contain backported patches to correct these issues.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2010-0296
https://nvd.nist.gov/vuln/detail/CVE-2011-0536
https://nvd.nist.gov/vuln/detail/CVE-2011-1071
https://nvd.nist.gov/vuln/detail/CVE-2011-1095
https://nvd.nist.gov/vuln/detail/CVE-2010-3847

References:

http://lists.centos.org/pipermail/centos-announce/2011-April/017298.html

Severity
High
CVSS Score
7.2
Published
2012-07-30
Modified
2019-03-15
Category
CentOS Local Security Checks

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