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CVE Database

CVE-2009-3720

Impact: Moderate
Public: 2009-01-17
Bugzilla: 531697: CVE-2009-3720 expat: buffer over-read and crash on XML with malformed UTF-8 sequences
IAVA: 2012-A-0020

Details

The MITRE CVE dictionary describes this issue as:

The updatePosition function in lib/xmltok_impl.c in libexpat in Expat 2.0.1, as used in Python, PyXML, w3c-libwww, and other software, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with crafted UTF-8 sequences that trigger a buffer over-read, a different vulnerability than CVE-2009-2625.

Find out more about CVE-2009-3720 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

Base Score: 5.0
Base Metrics: AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector: Network
Access Complexity: Low
Authentication: None
Confidentiality Impact: None
Integrity Impact: None
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 version 3 (4Suite) RHSA-2009:1572 November 10, 2009
Red Hat Enterprise Linux version 3 (expat) RHSA-2009:1625 December 07, 2009
Red Hat Enterprise Linux version 4 (4Suite) RHSA-2009:1572 November 10, 2009
Red Hat Enterprise Linux version 4 (PyXML) RHSA-2010:0002 January 04, 2010
Red Hat Enterprise Linux version 4 (expat) RHSA-2009:1625 December 07, 2009
Red Hat Enterprise Linux version 4 (python) RHSA-2011:0491 May 05, 2011
Red Hat Enterprise Linux version 5 (PyXML) RHSA-2010:0002 January 04, 2010
Red Hat Enterprise Linux version 5 (expat) RHSA-2009:1625 December 07, 2009
Red Hat Enterprise Linux version 5 (python) RHSA-2011:0492 May 05, 2011
Red Hat JBoss Web Server 1.0 RHSA-2011:0896 June 22, 2011

External References

This page is generated automatically and has not been checked for errors or omissions.

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