VLC: Multiple vulnerabilities

Security Team Contact Address

Updated March 07, 2008

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200803-13 / vlc
Release Date	March 07, 2008
Latest Revision	March 07, 2008: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-video/vlc	< 0.8.6e	>= 0.8.6e	All supported architectures

Related bugreports: #203345, #211575, #205299

Synopsis

Multiple vulnerabilities were found in VLC, allowing for the execution of arbitrary code and Denial of Service.

2. Impact Information

Background

VLC is a cross-platform media player and streaming server.

Description

Multiple vulnerabilities were found in VLC:

Michal Luczaj and Luigi Auriemma reported that VLC contains boundary errors when handling subtitles in the ParseMicroDvd(), ParseSSA(), and ParseVplayer() functions in the modules/demux/subtitle.c file, allowing for a stack-based buffer overflow (CVE-2007-6681).
The web interface listening on port 8080/tcp contains a format string error in the httpd_FileCallBack() function in the network/httpd.c file (CVE-2007-6682).
The browser plugin possibly contains an argument injection vulnerability (CVE-2007-6683).
The RSTP module triggers a NULL pointer dereference when processing a request without a "Transport" parameter (CVE-2007-6684).
Luigi Auriemma and Remi Denis-Courmont found a boundary error in the modules/access/rtsp/real_sdpplin.c file when processing SDP data for RTSP sessions (CVE-2008-0295) and a vulnerability in the libaccess_realrtsp plugin (CVE-2008-0296), possibly resulting in a heap-based buffer overflow.
Felipe Manzano and Anibal Sacco (Core Security Technologies) discovered an arbitrary memory overwrite vulnerability in VLC's MPEG-4 file format parser (CVE-2008-0984).

Impact

A remote attacker could send a long subtitle in a file that a user is enticed to open, a specially crafted MP4 input file, long SDP data, or a specially crafted HTTP request with a "Connection" header value containing format specifiers, possibly resulting in the remote execution of arbitrary code. Also, a Denial of Service could be caused and arbitrary files could be overwritten via the "demuxdump-file" option in a filename in a playlist or via an EXTVLCOPT statement in an MP3 file.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All VLC users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/vlc-0.8.6e"

4. References