[News]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200812-08
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Mgetty: Insecure temporary file usage
Date: December 06, 2008
Bugs: #235806
ID: 200812-08

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

Synopsis
========

Mgetty uses temporary files in an insecure manner, allowing for symlink
attacks.

Background
==========

Mgetty is a set of fax and voice modem programs.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dialup/mgetty < 1.1.36-r2 >= 1.1.36-r2

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

Dmitry E. Oboukhov reported that the "spooldir" directory in
fax/faxspool.in is created in an insecure manner.

Impact
======

A local attacker could exploit this vulnerability to overwrite
arbitrary files with the privileges of the user running the
application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Mgetty users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dialup/mgetty-1.1.36-r2"

References
==========

[ 1 ] CVE-2008-4936
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4936

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

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

http://security.gentoo.org/glsa/glsa-200812-08.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 ( -at -) gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2008 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/2.5