GLSA 200412-11: Cscope: Insecure creation of temporary file
Posted on: 12/16/2004 08:47 PM

A Cscope security update has been released for Gentoo Linux

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Linux Security Advisory GLSA 200412-11
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http://security.gentoo.org/
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Severity: Normal
Title: Cscope: Insecure creation of temporary files
Date: December 16, 2004
Bugs: #71595
ID: 200412-11

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Synopsis
=======

Cscope is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.

Background
=========

Cscope is a developer utility used to browse and manage source code.

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

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Package / Vulnerable / Unaffected
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1 dev-util/cscope < 15.5-r2 >= 15.5-r2

Description
==========

Cscope creates temporary files in world-writable directories with predictable names.

Impact
=====

A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When Cscope is executed, this would result in the file being overwritten with the rights of the user running the utility, which could be the root user.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All Cscope users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-util/cscope-15.5-r2"

References
=========

[ 1 ] CAN-2004-0996
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0996
[ 2 ] BugTraq Advisory
http://www.securityfocus.com/archive/1/381443

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

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

http://security.gentoo.org/glsa/glsa-200412-11.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/2.0


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