Net-SNMP: Denial of service — GLSA 200901-15

A vulnerability in Net-SNMP could lead to a Denial of Service.

Affected packages

Background

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

Description

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.

Resolution

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-analyzer/net-snmp-5.4.2.1"

References

• CVE-2008-4309

Release date
January 21, 2009

Latest revision
January 21, 2009: 01

Severity
normal

Exploitable
remote

Bugzilla entries

• 245306