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Gentoo: 202401-08 Update: libxml2 Remote Code Execution Vulnerability

gentoo
Calendar Grey January 10, 2014
Scroller Gentoo
Enhance libxslt to address various Denial of Service vulnerabilities. Consult Gentoo GLSA 201401-07 for comprehensive information.
Multiple Denial of Service vulnerabilities have been found in libxslt.

Summary

Multiple vulnerabilities have been found in libxslt: * Multiple errors exist in pattern.c and functions.c (CVE-2012-2870, CVE-2012-6139). * A double-free error exists in templates.c (CVE-2012-2893). * A NULL pointer dereference in keys.c (CVE-2012-6139). * An error in handling stylesheets containing DTDs (CVE-2013-4520).

Topics%20covered

Topics Covered

security advisory denial of service Gentoo security issue software update libxslt

Resolution

All libxslt users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libxslt-1.1.28"
Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.

References

[ 1 ] CVE-2012-2870 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2870 [ 2 ] CVE-2012-2893 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2893 [ 3 ] CVE-2012-6139 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6139 [ 4 ] CVE-2013-4520 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4520

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201401-07
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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: Normal
Title: libxslt: Denial of Service
Date: January 10, 2014
Bugs: #433603, #436284, #463236, #496114
ID: 201401-07

Topics%20covered

Topics Covered

security advisory denial of service Gentoo security issue software update libxslt

Synopsis

Multiple Denial of Service vulnerabilities have been found in libxslt.

Background

libxslt is the XSLT C library developed for the GNOME project. XSLT is an XML language to define transformations for XML.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libxslt < 1.1.28 >= 1.1.28

Impact

===== A remote attacker could entice a user to process a specially crafted file in an application linked against libxslt, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.