[ GLSA 200901-15 ] Net-SNMP: Denial of Service
Date: Wed, 21 Jan 2009 23:31:59 +0100
From: Pierre-Yves Rofes <py@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200901-15 ] Net-SNMP: Denial of Service
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Gentoo Linux Security Advisory GLSA 200901-15
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http://security.gentoo.org/
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Severity: Normal
Title: Net-SNMP: Denial of Service
Date: January 21, 2009
Bugs: #245306
ID: 200901-15
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Synopsis
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A vulnerability in Net-SNMP could lead to a Denial of Service.
Background
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Net-SNMP is a collection of tools for generating and retrieving SNMP
data.
Affected packages
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Package / Vulnerable / Unaffected
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1 net-analyzer/net-snmp < 5.4.2.1 >=3D 5.4.2.1
Description
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Oscar Mira-Sanchez reported an integer overflow in the
netsnmp_create_subtree_cache() function in agent/snmp_agent.c when
processing GETBULK requests.
Impact
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A remote attacker could send a specially crafted request to crash the
SNMP server. NOTE: The attacker needs to know the community string to
exploit this vulnerability.
Workaround
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Restrict access to trusted entities only.
Resolution
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All Net-SNMP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dnet-analyzer/net-snmp-5.4.2.1=
"
References
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[ 1 ] CVE-2008-4309
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-4309
Availability
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This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200901-15.xml
Concerns?
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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
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Copyright 2009 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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