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Gentoo Linux Security Advisory                           GLSA 200501-07
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: xine-lib: Multiple overflows
      Date: January 06, 2005
      Bugs: #74475
        ID: 200501-07

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Synopsis
=======
xine-lib contains multiple overflows potentially allowing execution of
arbitrary code.

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

Affected packages
================
    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  media-libs/xine-lib     < 1_rc8-r1                    >= 1_rc8-r1
                                                          *>= 1_rc6-r1

Description
==========
Ariel Berkman discovered that xine-lib reads specific input data into
an array without checking the input size in demux_aiff.c, making it
vulnerable to a buffer overflow (CAN-2004-1300) . iDefense discovered
that the PNA_TAG handling code in pnm_get_chunk() does not check if the
input size is larger than the buffer size (CAN-2004-1187). iDefense
also discovered that in this same function, a negative value could be
given to an unsigned variable that specifies the read length of input
data (CAN-2004-1188).

Impact
=====
A remote attacker could craft a malicious movie or convince a targeted
user to connect to a malicious PNM server, which could result in the
execution of arbitrary code with the rights of the user running any
xine-lib frontend.

Workaround
=========
There is no known workaround at this time.

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

    # emerge --sync
    # emerge --ask --oneshot --verbose media-libs/xine-lib

References
=========
  [ 1 ] CAN-2004-1187
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1187
  [ 2 ] CAN-2004-1188
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1188
  [ 3 ] CAN-2004-1300
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1300
  [ 4 ] iDefense Advisory

;type=vulnerabilities
  [ 5 ] iDefense Advisory

;type=vulnerabilities
  [ 6 ] Ariel Berkman Advisory
        
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200501-07

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
https://bugs.gentoo.org/.

License
======
Copyright 2005 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.

https://creativecommons.org/licenses/by-sa/2.0/