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Mandriva Linux Security Advisory 2013-056

Mandriva Linux Security Advisory 2013-056
Posted Apr 8, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-056 - A heap-buffer overflow was found in the way libxml2 decoded certain XML entities. A remote attacker could provide a specially-crafted XML file, which once opened in an application linked against libxml would cause that application to crash, or, potentially, execute arbitrary code with the privileges of the user running the application. A denial of service flaw was found in the way libxml2 performed string substitutions when entity values for entity references replacement was enabled. A remote attacker could provide a specially-crafted XML file that, when processed by an application linked against libxml2, would lead to excessive CPU consumption. An Off-by-one error in libxml2 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors. Multiple integer overflows in libxml2, on 64-bit Linux platforms allow remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors. The updated packages have been patched to correct these issues.

tags | advisory, remote, denial of service, overflow, arbitrary
systems | linux, mandriva
advisories | CVE-2012-5134, CVE-2013-0338, CVE-2011-3102, CVE-2012-2807
MD5 | d49989c5b91e22c433ffadff34c08713

Mandriva Linux Security Advisory 2013-056

Change Mirror Download
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Hash: SHA1

_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2013:056
http://www.mandriva.com/en/support/security/
_______________________________________________________________________

Package : libxml2
Date : April 8, 2013
Affected: Business Server 1.0
_______________________________________________________________________

Problem Description:

Multiple vulnerabilities was found and corrected in libxml2:

A heap-buffer overflow was found in the way libxml2 decoded certain
XML entitites. A remote attacker could provide a specially-crafted
XML file, which once opened in an application linked against libxml
would cause that application to crash, or, potentially, execute
arbitrary code with the privileges of the user running the application
(CVE-2012-5134).

A denial of service flaw was found in the way libxml2 performed string
substitutions when entity values for entity references replacement
was enabled. A remote attacker could provide a specially-crafted XML
file that, when processed by an application linked against libxml2,
would lead to excessive CPU consumption (CVE-2013-0338).

An Off-by-one error in libxml2 allows remote attackers to cause a
denial of service (out-of-bounds write) or possibly have unspecified
other impact via unknown vectors (CVE-2011-3102).

Multiple integer overflows in libxml2, on 64-bit Linux platforms
allow remote attackers to cause a denial of service or possibly have
unspecified other impact via unknown vectors (CVE-2012-2807).

The updated packages have been patched to correct these issues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5134
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0338
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3102
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2807
https://bugzilla.redhat.com/show_bug.cgi?id=912400
_______________________________________________________________________

Updated Packages:

Mandriva Business Server 1/X86_64:
3b0edbfe45e8b508baec4d44d5f4edaa mbs1/x86_64/lib64xml2_2-2.7.8-14.20120229.2.2.mbs1.x86_64.rpm
9c1fc6692eab2a304b0572baeea9fa3c mbs1/x86_64/lib64xml2-devel-2.7.8-14.20120229.2.2.mbs1.x86_64.rpm
b9b4b34210bf9ee8c82e8fa7d9eed44a mbs1/x86_64/libxml2-python-2.7.8-14.20120229.2.2.mbs1.x86_64.rpm
c72ca979e12b286151f15a148e21debe mbs1/x86_64/libxml2-utils-2.7.8-14.20120229.2.2.mbs1.x86_64.rpm
9af763be198cbc708a94a8dfff32bb3c mbs1/SRPMS/libxml2-2.7.8-14.20120229.2.2.mbs1.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/en/support/security/advisories/

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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