Summary : Insufficient input validation in MKV demuxer Date : January 2011 Affected versions : VLC media player 126.96.36.199 and earlier ID : VideoLAN-SA-1102 CVE reference : CVE-2011-0531
When parsing an invalid MKV (Matroska or WebM) file, input validation are insufficient.
If successful, a malicious third party will be able to trigger execution of arbitrary code.
Exploitation of this issue requires the user to explicitly open a specially crafted file.
The user should refrain from opening files from untrusted third parties or accessing untrusted remote sites (or disable the VLC browser plugins), until the patch is applied.
Alternatively, the MKV demuxer plugin
can be removed manually from the VLC plugin installation directory.
VLC media player 1.1.7 addresses this issue. Patches for older versions are available from the official VLC source code repositories.
This vulnerability was reported by Dan Rosenberg from VSR.