CVE-2012-5134

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-11-28 · updated 2026-06-16
Weakness: CWE-119

Description

Heap-based buffer underflow in the xmlParseAttValueComplex function in parser.c in libxml2 2.9.0 and earlier, as used in Google Chrome before 23.0.1271.91 and other products, allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted entities in an XML document.

Affected products

Apple Iphone Os: through 6.1.4; 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.1.2 (+41)
Google Chrome: through 23.0.1271.89; 23.0.1271.0, 23.0.1271.1, 23.0.1271.2, 23.0.1271.3, 23.0.1271.4, 23.0.1271.5 (+53)
xmlsoft libxml2: through 2.9.0; 1.7.0, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.8.0 (+111)

References

http://git.gnome.org/browse/libxml2/commit/?id=6a36fbe3b3e001a8a840b5c1fdd81cefc9947f0d
http://googlechromereleases.blogspot.com/2012/11/stable-channel-update.html
http://lists.apple.com/archives/security-announce/2013/Oct/msg00009.html
http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
http://rhn.redhat.com/errata/RHSA-2012-1512.html
http://rhn.redhat.com/errata/RHSA-2013-0217.html
http://secunia.com/advisories/51448
http://secunia.com/advisories/54886
http://secunia.com/advisories/55568

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