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GNU C Library: Multiple vulnerabilities

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201312-01 / glibc
Release Date December 03, 2013
Latest Revision December 03, 2013: 1
Impact high
Exploitable local, remote
Package Vulnerable versions Unaffected versions Architecture(s)
sys-libs/glibc < 2.15-r3 >= 2.15-r3 All supported architectures

Related bugreports: #350744, #356567, #386323, #386327, #386329, #386333, #386343, #386349, #393477, #404993

Synopsis

Multiple vulnerabilities have been found in GNU C Library, the worst of which allowing arbitrary code execution and privilege escalation.

2.  Impact Information

Background

The GNU C library is the standard C library used by Gentoo Linux systems.

Description

Multiple vulnerabilities have been discovered in GNU C Library. Please review the CVE identifiers referenced below for details.

Impact

A local attacker could trigger vulnerabilities in dynamic library loader, making it possible to load attacker-controlled shared objects during execution of setuid/setgid programs to escalate privileges.

A context-dependent attacker could trigger various vulnerabilities in GNU C Library, including a buffer overflow, leading to execution of arbitrary code or a Denial of Service.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All GNU C Library users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.15-r3"

4.  References



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Page updated December 03, 2013

Summary: This is a Gentoo Linux Security Advisory

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