[SECURITY] [DSA 2394-1] libxml2 security update
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Debian Security Advisory DSA-2394-1 security@debian.org
http://www.debian.org/security/ Luciano Bello
January 27, 2012 http://www.debian.org/security/faq
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Package : libxml2
Vulnerability : several
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-0216 CVE-2011-2821 CVE-2011-2834 CVE-2011-3905
CVE-2011-3919
Debian Bug : 652352 643648 656377
Many security problems had been fixed in libxml2, a popular library to handle
XML data files.
CVE-2011-3919:
Jüri Aedla discovered a heap-based buffer overflow that allows remote attackers
to cause a denial of service or possibly have unspecified other impact via
unknown vectors.
CVE-2011-0216:
An Off-by-one error have been discoveried that allows remote attackers to
execute arbitrary code or cause a denial of service.
CVE-2011-2821:
A memory corruption (double free) bug has been identified in libxml2's XPath
engine. Through it, it is possible to an attacker allows cause a denial of
service or possibly have unspecified other impact. This vulnerability does not
affect the oldstable distribution (lenny).
CVE-2011-2834:
Yang Dingning discovered a double free vulnerability related to XPath handling.
CVE-2011-3905:
An out-of-bounds read vulnerability had been discovered, which allows remote
attackers to cause a denial of service.
For the oldstable distribution (lenny), this problem has been fixed in
version 2.6.32.dfsg-5+lenny5.
For the stable distribution (squeeze), this problem has been fixed in
version 2.7.8.dfsg-2+squeeze2.
For the testing distribution (wheezy), this problem has been fixed in
version 2.7.8.dfsg-7.
For the unstable distribution (sid), this problem has been fixed in
version 2.7.8.dfsg-7.
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: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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