GLSA-200901-15 : Net-SNMP: Denial of Service

This script is Copyright (C) 2009-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200901-15
(Net-SNMP: Denial of Service)

Oscar Mira-Sanchez reported an integer overflow in the
netsnmp_create_subtree_cache() function in agent/snmp_agent.c when
processing GETBULK requests.

Impact :

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 :

Restrict access to trusted entities only.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200901-15.xml

Solution :

All Net-SNMP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-analyzer/net-snmp-5.4.2.1'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 35444 (gentoo_GLSA-200901-15.nasl)

Bugtraq ID: 32020

CVE ID: CVE-2008-4309