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[gentoo-announce] [ GLSA 201507-08 ] libxml2: Denial of Service

Posted on 07 July 2015
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201507-08
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https://security.gentoo.org/
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Severity: Normal
Title: libxml2: Denial of Service
Date: July 07, 2015
Bugs: #546720
ID: 201507-08

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Synopsis
========
A vulnerability in libxml2 allows a remote attacker to cause Denial of
Service.

Background
==========
libxml2 is the XML C parser and toolkit developed for the Gnome
project.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/libxml2 < 2.9.2-r1 >= 2.9.2-r1

Description
===========
libxml2 returns the empty string when the allocation limit is
encountered while constructing the attribute value string.

Impact
======
A remote attacker may be able to cause Denial of Service via a
specially crafted XML file.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All libxml2 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.2-r1"

References
==========
[ 1 ] CVE-2015-1819
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1819

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/201507-08

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.

License
=======
Copyright 2015 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5



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