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Gentoo Linux Security Advisory 200711-31

Gentoo Linux Security Advisory 200711-31
Posted Nov 26, 2007
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200711-31 - The SNMP agent (snmpd) does not properly handle GETBULK requests with an overly large max-repetitions field. Versions less than 5.4.1-r1 are affected.

tags | advisory
systems | linux, gentoo
advisories | CVE-2007-5846
SHA-256 | 2bf7b5bd4aff2930104896bbebb480bc1f35c010301516f8482c848c280da33c

Gentoo Linux Security Advisory 200711-31

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Gentoo Linux Security Advisory GLSA 200711-31
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http://security.gentoo.org/
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Severity: Normal
Title: Net-SNMP: Denial of Service
Date: November 20, 2007
Bugs: #198346
ID: 200711-31

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Synopsis
========

A Denial of Service vulnerability has been discovered in Net-SNMP when
processing GETBULK requests.

Background
==========

Net-SNMP is a collection of tools for generating and retrieving SNMP
data.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-analyzer/net-snmp < 5.4.1-r1 >= 5.4.1-r1

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

The SNMP agent (snmpd) does not properly handle GETBULK requests with
an overly large "max-repetitions" field.

Impact
======

A remote unauthenticated attacker could send a specially crafted SNMP
request to the vulnerable application, possibly resulting in a high CPU
and memory consumption.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/net-snmp-5.4.1-r1"

References
==========

[ 1 ] CVE-2007-5846
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5846

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

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

http://security.gentoo.org/glsa/glsa-200711-31.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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