Summary : Heap corruption in MP4 demultiplexer
Date : April 2011
Affected versions : VLC media player 1.1.8 down to 1.0.0
ID : VideoLAN-SA-1103
CVE reference : CVE-2011-1684
Details
When parsing some MP4 (MPEG-4 Part 14) files,
insufficient buffer size might lead to corruption of the heap.
Impact
If successful,
it is unknown whether a malicious third party might be able
to trigger execution of arbitrary code.
Successful exploitation of this bug can crash the process of the media player.
Threat mitigation
Exploitation of this issue requires the user
to explicitly open an MP4 file with some specific content.
Workarounds
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 MP4 decoder plugin
(libmp4_plugin.*)
can be removed manually from the VLC plugin installation directory.
Solution
VLC media player 1.1.9 will address this issue.
Patches for older versions are available
from the official VLC source code repositories.
