GLSA 200408-10: gv: Exploitable Buffer Overflow

A gv update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200408-10
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http://security.gentoo.org/
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Severity: Normal
Title: gv: Exploitable Buffer Overflow
Date: August 12, 2004
Bugs: #59385
ID: 200408-10

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Synopsis
=======

gv contains an exploitable buffer overflow that allows an attacker to execute arbitrary code.

Background
=========

gv is a PostScript and PDF viewer for X which provides a user interface for the ghostscript interpreter.

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

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Package / Vulnerable / Unaffected
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1 app-text/gv <= 3.5.8-r3 >= 3.5.8-r4

Description
==========

gv contains a buffer overflow vulnerability where an unsafe sscanf() call is used to interpret PDF and PostScript files.

Impact
=====

By enticing a user to view a malformed PDF or PostScript file an attacker could execute arbitrary code with the permissions of the user running gv.

Workaround
=========

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version of gv.

Resolution
=========

All gv users should upgrade to the latest version:

# emerge sync

# emerge -pv ">=app-text/gv-3.5.8-r4"
# emerge ">=app-text/gv-3.5.8-r4"

References
=========

[ 1 ] CAN-2002-0838
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0838

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

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

http://security.gentoo.org/glsa/glsa-200408-10.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 2004 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/1.0