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xine-lib: VCD MRL buffer overflow


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200408-18 / xine-lib
Release Date August 17, 2004
Latest Revision May 22, 2006: 02
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
media-libs/xine-lib <= 1_rc5-r2 >= 1_rc5-r3 All supported architectures

Related bugreports: #59948


xine-lib contains an exploitable buffer overflow in the VCD handling code

2.  Impact Information


xine-lib is a multimedia library which can be utilized to create multimedia frontends.


xine-lib contains a bug where it is possible to overflow the vcd:// input source identifier management buffer through carefully crafted playlists.


An attacker may construct a carefully-crafted playlist file which will cause xine-lib to execute arbitrary code with the permissions of the user. In order to conform with the generic naming standards of most Unix-like systems, playlists can have extensions other than .asx (the standard xine playlist format), and made to look like another file (MP3, AVI, or MPEG for example). If an attacker crafts a playlist with a valid header, they can insert a VCD playlist line that can cause a buffer overflow and possible shellcode execution.

3.  Resolution Information


There is no known workaround at this time. All users are encouraged to upgrade to the latest available version of xine-lib.


All xine-lib users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=media-libs/xine-lib-1_rc5-r3"
# emerge ">=media-libs/xine-lib-1_rc5-r3"

4.  References


Page updated August 17, 2004

Summary: This is a Gentoo Linux Security Advisory

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