GLSA 200703-09 Smb4K: Multiple vulnerabilities

Posted by Bob on: 03/10/2007 12:20 AM [ Print | 0 comment(s) ]

A new security update has been released for Gentoo Linux - Smb4K: Multiple vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200703-09
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http://security.gentoo.org/
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Severity: High
Title: Smb4K: Multiple vulnerabilities
Date: March 09, 2007
Bugs: #156152
ID: 200703-09

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Synopsis
========

Multiple vulnerabilities have been identified in Smb4K.

Background
==========

Smb4K is a SMB/CIFS (Windows) share browser for KDE.

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

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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/smb4k lt; 0.6.10a gt;= 0.6.10a

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

Kees Cook of the Ubuntu Security Team has identified multiple
vulnerabilities in Smb4K.

* The writeFile() function of smb4k/core/smb4kfileio.cpp makes
insecure usage of temporary files.

* The writeFile() function also stores the contents of the sudoers
file with incorrect permissions, allowing for the file's contents to
be world-readable.

* The createLockFile() and removeLockFile() functions improperly
handle lock files, possibly allowing for a race condition in file
handling.

* The smb4k_kill utility distributed with Smb4K allows any user in
the sudoers group to kill any process on the system.

* Lastly, there is the potential for multiple stack overflows when
any Smb4K utility is used with the sudo command.

Impact
======

A local attacker could gain unauthorized access to arbitrary files via
numerous attack vectors. In some cases to obtain this unauthorized
access, an attacker would have to be a member of the sudoers list.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Smb4K users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=net-misc/smb4k-0.6.10a"

References
==========

[ 1 ] CVE-2007-0472
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0472
[ 2 ] CVE-2007-0473
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0473
[ 3 ] CVE-2007-0474
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0474
[ 4 ] CVE-2007-0475
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0475

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

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

http://security.gentoo.org/glsa/glsa-200703-09.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