FreeBSD : net-snmp -- DoS for SNMP agent via crafted GETBULK request (daf045d7-b211-11dd-a987-000c29ca8953)

Medium Nessus Plugin ID 34770


The remote FreeBSD host is missing one or more security-related updates.


Wes Hardaker reports through forum :

SECURITY ISSUE: A bug in the getbulk handling code could let anyone with even minimal access crash the agent. If you have open access to your snmp agents (bad bad bad; stop doing that!) or if you don't trust everyone that does have access to your agents you should updated immediately to prevent potential denial of service attacks.

Description at additionally clarifies :

Integer overflow in the netsnmp_create_subtree_cache function in agent/snmp_agent.c in net-snmp 5.4 before, 5.3 before, and 5.2 before allows remote attackers to cause a denial of service (crash) via a crafted SNMP GETBULK request, which triggers a heap-based buffer overflow, related to the number of responses or repeats.


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 34770

File Name: freebsd_pkg_daf045d7b21111dda987000c29ca8953.nasl

Version: $Revision: 1.13 $

Type: local

Published: 2008/11/14

Modified: 2013/06/22

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:net-snmp, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2008/11/14

Vulnerability Publication Date: 2008/10/12

Reference Information

CVE: CVE-2008-4309

CWE: 20