GLSA 200503-14: KDE dcopidlng: Insecure temporary file creation
Posted on: 03/07/2005 03:16 PM

A KDE dcopidlng security update is available for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200503-14
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http://security.gentoo.org/
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Severity: Normal
Title: KDE dcopidlng: Insecure temporary file creation
Date: March 07, 2005
Bugs: #81652
ID: 200503-14

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Synopsis
=======

The dcopidlng script is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.

Background
=========

KDE is a feature-rich graphical desktop environment for Linux and Unix-like Operating Systems. DCOP is KDE's simple IPC/RPC mechanism. dcopidlng is a DCOP helper script.

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

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Package / Vulnerable / Unaffected
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1 kde-base/kdelibs lt; 3.3.2-r5 gt;= 3.3.2-r5
*gt;= 3.2.3-r7

Description
==========

Davide Madrisan has discovered that the dcopidlng script creates temporary files in a world-writable directory 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 dcopidlng 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 kdelibs users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose kde-base/kdelibs

References
=========

[ 1 ] CAN-2005-0365
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0365

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

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

http://security.gentoo.org/glsa/glsa-200503-14.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 2005 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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