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Gentoo Linux Security Advisory GLSA 200408-14
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http://security.gentoo.org/
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Severity: Normal
Title: acroread: UUDecode filename buffer overflow
Date: August 15, 2004
Bugs: #60205
ID: 200408-14
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Synopsis
========
acroread contains two errors in the handling of UUEncoded filenames
that may lead to execution of arbitrary code or programs.
Background
==========
acroread is Adobe's Acrobat PDF reader for Linux.
Affected packages
=================
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Package / Vulnerable / Unaffected
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1 app-text/acroread <= 5.08 >= 5.09
Description
===========
acroread contains two errors in the handling of UUEncoded filenames.
First, it fails to check the length of a filename before copying it
into a fixed size buffer and, secondly, it fails to check for the
backtick shell metacharacter in the filename before executing a command
with a shell.
Impact
======
By enticing a user to open a PDF with a specially crafted filename, an
attacker could execute arbitrary code or programs with the permissions
of the user running acroread.
Workaround
==========
There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version of acroread.
Resolution
==========
All acroread users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=app-text/acroread-5.09"
# emerge ">=app-text/acroread-5.09"
References
==========
[ 1 ] iDEFENSE Advisory 125
http://idefense.com/application/poi/display?id=125&type=vulnerabilitie s
[ 2 ] iDEFENSE Advisory 126
http://idefense.com/application/poi/display?id=126&type=vulnerabilitie s
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200408-14.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
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