GLSA 200710-10 SKK Tools: Insecure temporary file creation
Posted on: 10/13/2007 12:25 AM

A new security update has been released for Gentoo Linux - SKK Tools: Insecure temporary file creation. Here the announcement:

Gentoo Linux Security Advisory GLSA 200710-10
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http://security.gentoo.org/
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Severity: Normal
Title: SKK Tools: Insecure temporary file creation
Date: October 12, 2007
Bugs: #193121
ID: 200710-10

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Synopsis
========

SKK insecurely creates temporary files.

Background
==========

SKK is a Japanese input method for Emacs.

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

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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-i18n/skktools lt; 1.2-r1 gt;= 1.2-r1

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

skkdic-expr.c insecurely writes temporary files to a location in the
form $TMPDIR/skkdic$PID.{pag,dir,db}, where $PID is the process ID.

Impact
======

A local attacker could create symbolic links in the directory where the
temporary files are written, pointing to a valid file somewhere on the
filesystem that is writable by the user running the SKK software. When
SKK writes the temporary file, the target valid file would then be
overwritten with the contents of the SKK temporary file.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SKK Tools users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=app-i18n/skktools-1.2-r1"

References
==========

[ 1 ] CVE-2007-3916
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3916

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

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

http://security.gentoo.org/glsa/glsa-200710-10.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 2007 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



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