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Gentoo Linux Security Advisory                           GLSA 200903-37
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Ghostscript: User-assisted execution of arbitrary code
      Date: March 23, 2009
      Bugs: #261087
        ID: 200903-37

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Synopsis
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Multiple integer overflows in the Ghostscript ICC library might allow
for user-assisted execution of arbitrary code.

Background
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Ghostscript is an interpreter for the PostScript language and the
Portable Document Format (PDF).

Affected packages
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    -------------------------------------------------------------------
     Package                   /   Vulnerable   /           Unaffected
    -------------------------------------------------------------------
  1  app-text/ghostscript-gpl       < 8.64-r2               >=3D 8.64-r2
  2  app-text/ghostscript-gnu       < 8.62.0                 >=3D 8.62.0
  3  app-text/ghostscript-esp     <=3D 8.15.4-r1             Vulnerable!
    -------------------------------------------------------------------
     NOTE: Certain packages are still vulnerable. Users should migrate
           to another package if one is available or wait for the
           existing packages to be marked stable by their
           architecture maintainers.
    -------------------------------------------------------------------
     3 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

Description
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Jan Lieskovsky from the Red Hat Security Response Team discovered the
following vulnerabilities in Ghostscript's ICC Library:

* Multiple integer overflows (CVE-2009-0583).

* Multiple insufficient bounds checks on certain variable sizes
  (CVE-2009-0584).

Impact
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A remote attacker could entice a user to open a specially crafted
PostScript file containing images and a malicious ICC profile, possibly
resulting in the execution of arbitrary code with the privileges of the
user running the application.

Workaround
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There is no known workaround at this time.

Resolution
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All GPL Ghostscript users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=3Dapp-text/ghostscript-gpl-8.64-r2=
"

All GNU Ghostscript users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=3Dapp-text/ghostscript-gnu-8.62.0"=


We recommend that users unmerge ESP Ghostscript and use GPL or GNU
Ghostscript instead:

 # emerge --unmerge "app-text/ghostscript-esp"

For installation instructions, see above.

References
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  [ 1 ] CVE-2009-0583
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-0583
  [ 2 ] CVE-2009-0584
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-0584

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

  http://security.gentoo.org/glsa/glsa-200903-37.xml

Concerns?
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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
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Copyright 2009 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/2.5