FreeBSD : mplayer & libxine -- MMS and Real RTSP buffer overflow vulnerabilities (91c606fc-b5d0-11d9-a788-0001020eed82)

This script is Copyright (C) 2005-2013 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

A xine security announcement reports :

By a user receiving data from a malicious network streaming server, an
attacker can overrun a heap buffer, which can, on some systems, lead
to or help in executing attacker-chosen malicious code with the
permissions of the user running a xine-lib based media application.

Both the MMS and Real RTSP streaming client code made some too-strong
assumptions on the transferred data. Several critical bounds checks
were missing, resulting in the possibility of heap overflows, should
the remote server not adhere to these assumptions. In the MMS case, a
remote server could present content with too many individual streams;
in the RTSP case, a remote server's reply could have too many lines.

An attacker can set up a server delivering malicious data to the
users. This can be used to overflow a heap buffer, which can, with
certain implementations of heap management, lead to attacker chosen
data written to the stack. This can cause attacker-chosen code being
executed with the permissions of the user running the application. By
tricking users to retrieve a stream, which can be as easy as providing
a link on a website, this vulnerability can be exploited remotely.

See also :

http://www.nessus.org/u?b32edb6d
http://www.mplayerhq.hu/homepage/design7/news.html#vuln11
http://xinehq.de/index.php/security/XSA-2004-8
http://www.nessus.org/u?c8fdfd86

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 19031 (freebsd_pkg_91c606fcb5d011d9a7880001020eed82.nasl)

Bugtraq ID: 13270
13271

CVE ID: CVE-2005-1195

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