GLSA 200505-18: Net-SNMP: fixproc insecure temporary file creation
Posted on: 05/23/2005 03:35 PM

A Net-SNMP security update is available for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200505-18
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http://security.gentoo.org/
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Severity: Normal
Title: Net-SNMP: fixproc insecure temporary file creation
Date: May 23, 2005
Bugs: #91792
ID: 200505-18

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Synopsis
=======

Net-SNMP creates temporary files in an insecure manner, possibly allowing the execution of arbitrary code.

Background
=========

Net-SNMP is a suite of applications used to implement the Simple Network Management Protocol.

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

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Package / Vulnerable / Unaffected
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1 net-analyzer/net-snmp lt; 5.2.1-r1 gt;= 5.2.1-r1

Description
==========

The fixproc application of Net-SNMP creates temporary files with predictable filenames.

Impact
=====

A malicious local attacker could exploit a race condition to change the content of the temporary files before they are executed by fixproc, possibly leading to the execution of arbitrary code. A local attacker could also create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When fixproc is executed, this would result in the file being overwritten.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All Net-SNMP users should upgrade to the latest available version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=net-analyzer/net-snmp-5.2.1-r1"

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

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

http://security.gentoo.org/glsa/glsa-200505-18.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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