Date: Thu, 12 Aug 2004 13:33:07 +0200
From: Sune Kloppenborg Jeppesen <[email protected]>
To: [email protected]Subject: [ GLSA 200408-10 ] gv: Exploitable Buffer Overflow
Cc: [email protected], [email protected],
[email protected]
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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
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
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
[email protected] 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
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