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[SA32130] Libxml2 Predefined Entities Denial of Service Vulnerability

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Fri Oct 03 2008 - 17:24:04 CDT

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TITLE:
Libxml2 Predefined Entities Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA32130

VERIFY ADVISORY:
http://secunia.com/advisories/32130/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
From remote

SOFTWARE:
Libxml2 2.x
http://secunia.com/advisories/product/3080/

DESCRIPTION:
A vulnerability has been reported in Libxml2, which can be exploited
by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in the processing of XML
files and can be exploited to exhaust all available memory via a
specially crafted XML file containing a predefined entity inside an
entity definition.

The vulnerability is reported in versions 2.7.0 and 2.7.1.

SOLUTION:
Update to version 2.7.2.
ftp://xmlsoft.org/libxml2/

PROVIDED AND/OR DISCOVERED BY:
Reported by Christian Weiske in a Libxml2 bug report.

ORIGINAL ADVISORY:
http://bugzilla.gnome.org/show_bug.cgi?id=554660

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