10 - GLSA-200803-13

Synopsis

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

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.

Workaround

There is no known workaround at this time.

Resolution

All VLC users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/vlc-0.8.6e"

References

[ 1 ] CVE-2007-6681 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6681
[ 2 ] CVE-2007-6682 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6682
[ 3 ] CVE-2007-6683 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6683
[ 4 ] CVE-2007-6684 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6684
[ 5 ] CVE-2008-0295 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0295
[ 6 ] CVE-2008-0296 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0296
[ 7 ] CVE-2008-0984 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0984

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200803-13.xml