FreshPorts - VuXML

Wes Hardaker reports through sourceforge.net 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 cve.mitre.org additionally clarifies:

Integer overflow in the netsnmp_create_subtree_cache function in agent/snmp_agent.c in net-snmp 5.4 before 5.4.2.1, 5.3 before 5.3.2.3, and 5.2 before 5.2.5.1 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.

gt 5.4 lt 5.4.2.1

gt 5.3 lt 5.3.2.3

Qinghao Tang reports:

Incompletely initialized vulnerability exists in the function ‘snmp_pdu_parse()’ of ‘snmp_api.c', and remote attackers can cause memory leak, DOS and possible command executions by sending malicious packets.

le 5.7.3_7

CVE reports:

The SNMP agent (snmp_agent.c) in net-snmp before 5.4.1 allows remote attackers to cause a denial of service (CPU and memory consumption) via a GETBULK request with a large max-repeaters value.

< 5.3.1_7

The Red Hat Security Response Team reports:

An array index error, leading to out-of heap-based buffer read flaw was found in the way the net-snmp agent performed lookups in the extension table. When certain MIB subtrees were handled by the extend directive, a remote attacker (having read privileges to the subntree) could use this flaw to cause a denial of service condition via an SNMP GET request involving a non-existent extension table entry.

< 5.7.1_7