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[ GLSA 200408-18 ] xine-lib: VCD MRL buffer overflow
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GLSA
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Joined: 13 Jun 2003
Posts: 4079
Location: Dresden, Germany

PostPosted: Wed Aug 18, 2004 6:29 am    Post subject: [ GLSA 200408-18 ] xine-lib: VCD MRL buffer overflow Reply with quote

Gentoo Linux Security Advisory

Title: xine-lib: VCD MRL buffer overflow (GLSA 200408-18)
Severity: normal
Exploitable: remote
Date: August 17, 2004
Updated: May 22, 2006
Bug(s): #59948
ID: 200408-18

Synopsis

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

Background

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

Affected Packages

Package: media-libs/xine-lib
Vulnerable: <= 1_rc5-r2
Unaffected: >= 1_rc5-r3
Architectures: All supported architectures


Description

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

Impact

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.

Workaround

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

Resolution

All xine-lib users should upgrade to the latest version:
Code:
# emerge sync
# emerge -pv ">=media-libs/xine-lib-1_rc5-r3"
# emerge ">=media-libs/xine-lib-1_rc5-r3"


References

Open Security Advisory
CVE-2004-1475


Last edited by GLSA on Tue May 23, 2006 4:17 am; edited 2 times in total
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