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Gentoo: GLSA-201312-01 High: Glibc Arbitrary Code Execution Risk

gentoo
Calendar Grey December 3, 2013
Dist Gentoo Esm H88
Several security flaws within Gentoo's GNU C Library might result in unauthorized privilege escalation and the potential for arbitrary code execution.
Multiple vulnerabilities have been found in GNU C Library, the worst of which allowing arbitrary code execution and privilege escalation.

Summary

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

Topics%20covered

Topics Covered

security advisory gentoo privilege escalation arbitrary code execution high glibc data integrity

Resolution

All GNU C Library users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.15-r3"

References

[ 1 ] CVE-2009-5029 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-5029 [ 2 ] CVE-2010-3847 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3847 [ 3 ] CVE-2011-0536 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0536 [ 4 ] CVE-2011-1071 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1071 [ 5 ] CVE-2011-1089 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1089 [ 6 ] CVE-2011-1095 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1095 [ 7 ] CVE-2011-1658 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1658 [ 8 ] CVE-2011-1659 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1659 [ 9 ] CVE-2012-0864 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0864

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201312-01
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: High
Title: GNU C Library: Multiple vulnerabilities
Date: December 03, 2013
Bugs: #350744, #356567, #386323, #386327, #386329, #386333,
ID: 201312-01

Topics%20covered

Topics Covered

security advisory gentoo privilege escalation arbitrary code execution high glibc data integrity

Synopsis

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

Background

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

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-libs/glibc < 2.15-r3 >= 2.15-r3

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.

Workaround

There is no known workaround at this time.

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