[gentoo-announce] [ GLSA 200812-14 ] aview: Insecure temporary file usage

[news 28]

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Gentoo Linux Security Advisory GLSA 200812-14

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http://security.gentoo.org/

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Severity: Normal

Title: aview: Insecure temporary file usage

Date: December 14, 2008

Bugs: #235808

ID: 200812-14

 

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Synopsis

========

 

An insecure temporary file usage has been reported in aview, leading to

symlink attacks.

 

Background

==========

 

aview is an ASCII image viewer and animation player.

 

Affected packages

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

 

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

Package / Vulnerable / Unaffected

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

1 media-gfx/aview < 1.3.0_rc1-r1 >= 1.3.0_rc1-r1

 

Description

===========

 

Dmitry E. Oboukhov reported that aview uses the "/tmp/aview$$.pgm" file

in an insecure manner when processing files.

 

Impact

======

 

A local attacker could perform symlink attacks to overwrite arbitrary

files on the system with the privileges of the user running the

application.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All aview users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=media-gfx/aview-1.3.0_rc1-r1"

 

References

==========

 

[ 1 ] CVE-2008-4935

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4935

 

Availability

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

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200812-14.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 ( -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