feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0.1 allows remote attackers to cause a denial of service (application crash) via a malformed DOCTYPE declaration.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-1156
• https://bugzilla.novell.com/show_bug.cgi?id=680074
• https://bugzilla.redhat.com/show_bug.cgi?id=684877
• https://code.google.com/p/feedparser/issues/detail?id=91
• GHSA-6h52-4vmh-8x4f
• http://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html
• http://openwall.com/lists/oss-security/2011/03/14/18
• http://openwall.com/lists/oss-security/2011/03/15/11
• http://secunia.com/advisories/43730
• http://secunia.com/advisories/44074
• http://support.novell.com/security/cve/CVE-2011-1156.html
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:082
• http://www.securityfocus.com/bid/46867