* [gentoo-announce] [ GLSA 201409-08 ] libxml2: Denial of Service
@ 2014-09-19 18:53 99% Kristian Fiskerstrand
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From: Kristian Fiskerstrand @ 2014-09-19 18:53 UTC (permalink / raw
To: gentoo-announce
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Gentoo Linux Security Advisory GLSA 201409-08
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http://security.gentoo.org/
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Severity: Normal
Title: libxml2: Denial of Service
Date: September 19, 2014
Bugs: #509834
ID: 201409-08
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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 < 2.9.1-r4 >= 2.9.1-r4
Description
===========
A vulnerability in the xmlParserHandlePEReference() function of
parser.c, when expanding entity references, can be exploited to consume
large amounts of memory and cause a crash or hang.
Impact
======
A remote attacker may be able to cause Denial of Service via a
specially crafted XML file containing malicious attributes.
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/libxml2-2.9.1-r4"
References
==========
[ 1 ] CVE-2014-0191
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0191
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201409-08.xml
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 2014 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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