The StripTags function in (1) the USF decoder (modules/codec/subtitles/subsdec.c) and (2) the Text decoder (modules/codec/subtitles/subsusf.c) in VideoLAN VLC Media Player 1.1 before 1.1.6-rc allows remote attackers to execute arbitrary code via a subtitle with an opening "<" without a closing ">" in an MKV file, which triggers heap memory corruption, as demonstrated using refined-australia-blu720p-sample.mkv.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12414
https://exchange.xforce.ibmcloud.com/vulnerabilities/65029
http://www.vupen.com/english/advisories/2011/0225
http://www.openwall.com/lists/oss-security/2011/01/25/9
http://www.openwall.com/lists/oss-security/2011/01/25/7
http://securityreason.com/securityalert/8064
http://mailman.videolan.org/pipermail/vlc-devel/2011-January/078614.html
http://mailman.videolan.org/pipermail/vlc-devel/2011-January/078607.html