[ GLSA 200501-15 ] UnRTF: Buffer overflow

[Dan Margolis <krispykringle () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200501-15
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: UnRTF: Buffer overflow
      Date: January 10, 2005
      Bugs: #74480
        ID: 200501-15

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Synopsis
========

A buffer overflow in UnRTF allows an attacker to execute arbitrary code
by way of a specially crafted RTF file.

Background
==========

UnRTF is a utility to convert files in the Rich Text Format into other
formats.

Affected packages
=================

    -------------------------------------------------------------------
     Package         /   Vulnerable   /                     Unaffected
    -------------------------------------------------------------------
  1  app-text/unrtf      < 0.19.3-r1                      >= 0.19.3-r1

Description
===========

An unchecked strcat() in unrtf may overflow the bounds of a static
buffer.

Impact
======

Using a specially crafted file, possibly delivered by e-mail or over
the web, an attacker may execute arbitrary code with the permissions of
the user running UnRTF.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All unrtf users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/unrtf-0.19.3-r1"

References
==========

  [ 1 ] Original Announcement
        http://tigger.uic.edu/~jlongs2/holes/unrtf.txt

Availability
============

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

  http://security.gentoo.org/glsa/glsa-200501-15.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 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.

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

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