[gentoo-announce] [ GLSA 200812-08 ] Mgetty: Insecure temporary file usage

[news 28]

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

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