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Gentoo Linux Security Advisory 200505-18

Gentoo Linux Security Advisory 200505-18
Posted Jul 2, 2005
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200505-18 - The fixproc application of Net-SNMP creates temporary files with predictable filenames. Versions less than 5.2.1-r1 are affected.

tags | advisory
systems | linux, gentoo
SHA-256 | 55ae58d4091c9513eec1db8f4df5e6697cdf1f1e7a159b4294f30dc6b5b91720

Gentoo Linux Security Advisory 200505-18

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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
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-analyzer/net-snmp < 5.2.1-r1 >= 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 ">=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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