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Test ID:1.3.6.1.4.1.25623.1.0.70655
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2012:0016
Summary:Redhat Security Advisory RHSA-2012:0016
Description:The remote host is missing updates announced in
advisory RHSA-2012:0016.

The libxml2 library is a development toolbox providing the implementation
of various XML standards. One of those standards is the XML Path Language
(XPath), which is a language for addressing parts of an XML document.

A heap-based buffer overflow flaw was found in the way libxml2 decoded
entity references with long names. A remote attacker could provide a
specially-crafted XML file that, when opened in an application linked
against libxml2, would cause the application to crash or, potentially,
execute arbitrary code with the privileges of the user running the
application. (CVE-2011-3919)

An off-by-one error, leading to a heap-based buffer overflow, was found in
the way libxml2 parsed certain XML files. A remote attacker could provide a
specially-crafted XML file that, when opened in an application linked
against libxml2, would cause the application to crash or, potentially,
execute arbitrary code with the privileges of the user running the
application. (CVE-2011-0216)

A flaw was found in the way libxml2 parsed certain XPath expressions. If an
attacker were able to supply a specially-crafted XML file to an application
using libxml2, as well as an XPath expression for that application to run
against the crafted file, it could cause the application to crash.
(CVE-2011-2834)

Note: Red Hat does not ship any applications that use libxml2 in a way that
would allow the CVE-2011-2834 flaw to be exploited
however, third-party
applications may allow XPath expressions to be passed which could trigger
this flaw.

An out-of-bounds memory read flaw was found in libxml2. A remote attacker
could provide a specially-crafted XML file that, when opened in an
application linked against libxml2, would cause the application to crash.
(CVE-2011-3905)

All users of libxml2 are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. The desktop must
be restarted (log out, then log back in) for this update to take effect.

Solution:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

http://rhn.redhat.com/errata/RHSA-2012-0016.html

Risk factor : High
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-0216
http://lists.apple.com/archives/security-announce/2011//Jul/msg00002.html
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.html
Debian Security Information: DSA-2394 (Google Search)
http://www.debian.org/security/2012/dsa-2394
http://www.mandriva.com/security/advisories?name=MDVSA-2011:188
http://www.redhat.com/support/errata/RHSA-2011-1749.html
RedHat Security Advisories: RHSA-2013:0217
http://rhn.redhat.com/errata/RHSA-2013-0217.html
Common Vulnerability Exposure (CVE) ID: CVE-2011-2834
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00003.html
HPdes Security Advisory: HPSBMU02786
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
HPdes Security Advisory: SSRT100877
http://www.mandriva.com/security/advisories?name=MDVSA-2011:145
http://osvdb.org/75560
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:14410
XForce ISS Database: chrome-libxml-code-execution(69885)
http://xforce.iss.net/xforce/xfdb/69885
Common Vulnerability Exposure (CVE) ID: CVE-2011-3905
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:14761
Common Vulnerability Exposure (CVE) ID: CVE-2011-3919
http://www.mandriva.com/security/advisories?name=MDVSA-2012:005
SuSE Security Announcement: SUSE-SU-2013:1627 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
BugTraq ID: 51300
http://www.securityfocus.com/bid/51300
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:14504
http://www.securitytracker.com/id?1026487
http://secunia.com/advisories/47449
http://secunia.com/advisories/55568
CopyrightCopyright (c) 2012 E-Soft Inc. http://www.securityspace.com

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