CVE Database


Impact: Important
Public: 2012-01-06
Bugzilla: 771896: CVE-2011-3919 libxml2: Heap-based buffer overflow when decoding an entity reference with a long name
IAVA: 2012-A-0073


The MITRE CVE dictionary describes this issue as:

Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

Find out more about CVE-2011-3919 from the MITRE CVE dictionary and NIST NVD.


This issue affected the versions of libxml2 as shipped with Red Hat Enterprise Linux 4, 5 and 6 and has been addressed via RHSA-2012:0016, RHSA-2012:0017 and RHSA-2012:0018 respectively.

CVSS v2 metrics

Base Score: 6.8
Base Metrics: AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
Red Hat Enterprise Linux EUS (v. 5.6 server) (libxml2) RHSA-2012:0104 February 08, 2012
Red Hat Enterprise Linux version 4 (libxml2) RHSA-2012:0016 January 11, 2012
Red Hat Enterprise Linux version 5 (libxml2) RHSA-2012:0017 January 11, 2012
Red Hat Enterprise Linux version 6 (libxml2) RHSA-2012:0018 January 11, 2012
Red Hat Enterprise Linux version 6 (mingw32-libxml2) RHSA-2013:0217 January 31, 2013

External References

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For clarification or corrections please contact the Red Hat Security Response Team.