From koon@gentoo.org Sat Mar 4 12:26:52 2006 From: Thierry Carrez To: gentoo-announce@lists.gentoo.org Cc: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com Date: Sat, 04 Mar 2006 18:26:18 +0100 Subject: [Full-disclosure] [ GLSA 200603-03 ] MPlayer: Multiple integer overflows - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200603-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: MPlayer: Multiple integer overflows Date: March 04, 2006 Bugs: #115760, #122029 ID: 200603-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== MPlayer is vulnerable to integer overflows in FFmpeg and ASF decoding that could potentially result in the execution of arbitrary code. Background ========== MPlayer is a media player capable of handling multiple multimedia file formats. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-video/mplayer < 1.0.20060217 >= 1.0.20060217 Description =========== MPlayer makes use of the FFmpeg library, which is vulnerable to a heap overflow in the avcodec_default_get_buffer() function discovered by Simon Kilvington (see GLSA 200601-06). Furthermore, AFI Security Research discovered two integer overflows in ASF file format decoding, in the new_demux_packet() function from libmpdemux/demuxer.h and the demux_asf_read_packet() function from libmpdemux/demux_asf.c. Impact ====== An attacker could craft a malicious media file which, when opened using MPlayer, would lead to a heap-based buffer overflow. This could result in the execution of arbitrary code with the permissions of the user running MPlayer. Workaround ========== There is no known workaround at this time. Resolution ========== All MPlayer users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-video/mplayer-1.0.20060217" References ========== [ 1 ] CVE-2005-4048 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4048 [ 2 ] CVE-2006-0579 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0579 [ 3 ] GLSA 200601-06 http://www.gentoo.org/security/en/glsa/glsa-200601-06.xml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200603-03.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2006 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.0 [ Part 1.2, "OpenPGP digital signature" Application/PGP-SIGNATURE ] [ 264bytes. ] [ Unable to print this part. ] [ Part 2: "Attached Text" ] _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/