Debian DLA-508-1 : expat security update
High Nessus Plugin ID 91523
SynopsisThe remote Debian host is missing a security update.
DescriptionTwo related issues have been discovered in Expat, a C library for parsing XML.
This issue was introduced when CVE-2012-0876 was addressed. Stefan Sørensen discovered that the use of the function XML_Parse() seeds the random number generator generating repeated outputs for rand() calls.
This is the product of an incomplete solution for CVE-2012-0876. The parser poorly seeds the random number generator allowing an attacker to cause a denial of service (CPU consumption) via an XML file with crafted identifiers.
You might need to manually restart programs and services using expat libraries.
For Debian 7 'Wheezy', these problems have been fixed in version 2.1.0-1+deb7u4.
We recommend that you upgrade your expat packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpgrade the affected packages.