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Gentoo Linux Security Advisory                           GLSA 200501-30
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: CUPS: Stack overflow in included Xpdf code
      Date: January 22, 2005
      Bugs: #78249
        ID: 200501-30

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Synopsis
=======
CUPS includes Xpdf code and therefore is vulnerable to the recent stack
overflow issue, potentially resulting in the remote execution of
arbitrary code.

Background
=========
The Common UNIX Printing System (CUPS) is a cross-platform print
spooler. It makes use of Xpdf code to handle PDF files.

Affected packages
================
    -------------------------------------------------------------------
     Package         /   Vulnerable   /                     Unaffected
    -------------------------------------------------------------------
  1  net-print/cups      < 1.1.23-r1                      >= 1.1.23-r1

Description
==========
The Decrypt::makeFileKey2 function in Xpdf's Decrypt.cc insufficiently
checks boundaries when processing /Encrypt /Length tags in PDF files
(GLSA 200501-28).

Impact
=====
This issue could be exploited by a remote attacker to execute arbitrary
code by sending a malicious print job to a CUPS spooler.

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

Resolution
=========
All CUPS users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-print/cups-1.1.23-r1"

References
=========
  [ 1 ] CAN-2005-0064
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0064
  [ 2 ] GLSA 200501-28
        https://security.gentoo.org/glsa/200501-28

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200501-30

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/