Debian: DSA-3057-2 Critical: libxml2 Denial Of Service Patch
debian
April 7, 2015
The update for libxml2 issued as DSA-3057-1 caused regressions due to an incomplete patch to address CVE-2014-3660
Topics Covered
Summary
Sogeti found a denial of service flaw in libxml2, a library providing
support to read, modify and write XML and HTML files. A remote attacker
could provide a specially crafted XML file that, when processed by an
application using libxml2, would lead to excessive CPU consumption
(denial of service) based on excessive entity substitutions, even if
entity substitution was disabled, which is the parser default behavior.
(CVE-2014-3660)
For the stable distribution (wheezy), this problem has been fixed in
version 2.8.0+dfsg1-7+wheezy4.
We recommend that you upgrade your libxml2 packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
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