[ GLSA 200408-14 ] acroread: UUDecode filename buffer overfl

[pahud]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200408-14
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: acroread: UUDecode filename buffer overflow
Date: August 15, 2004
Bugs: #60205
ID: 200408-14

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
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/dis ... rabilities
[ 2 ] iDEFENSE Advisory 126
http://idefense.com/application/poi/dis ... rabilities

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
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (GNU/Linux)

iD8DBQFBH3efzKC5hMHO6rkRAqOrAJ9AvnKDxSb+Wwx9PDE1PrMdRJPR2gCgi8Eg
IqibOXjRcG0lw4PJhSUSC3E=
=xfgU
-----END PGP SIGNATURE-----