CVE-2009-3560

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

Score

CVSS 2.0 5.0 Medium

Status

Modified - secalert@redhat.com

Published

2009-12-04

Last modified

2024-08-07

Weaknesses

CWE-119

Affected products

• Http Server (Apache)
• Libexpat (Libexpat Project)

References

• http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmlparse.c?r1=1.164&r2=1.165
• http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmlparse.c?view=log#rev1.165
• http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html
• http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
• http://lists.vmware.com/pipermail/security-announce/2010/000082.html
• http://mail.python.org/pipermail/expat-bugs/2009-November/002846.html
• http://marc.info/?l=bugtraq&m=130168502603566&w=2
• http://secunia.com/advisories/37537
• http://secunia.com/advisories/38231
• http://secunia.com/advisories/38794
• http://secunia.com/advisories/38832
• http://secunia.com/advisories/38834
• http://secunia.com/advisories/39478
• http://secunia.com/advisories/41701
• http://secunia.com/advisories/43300
• http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.486026
• http://sunsolve.sun.com/search/document.do?assetkey=1-66-273630-1
• http://www.debian.org/security/2009/dsa-1953
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:316
• http://www.redhat.com/support/errata/RHSA-2011-0896.html
• http://www.securityfocus.com/bid/37203
• http://www.securitytracker.com/id?1023278
• http://www.ubuntu.com/usn/USN-890-1
• http://www.ubuntu.com/usn/USN-890-6
• http://www.vupen.com/english/advisories/2010/0528
• http://www.vupen.com/english/advisories/2010/0896
• http://www.vupen.com/english/advisories/2010/1107