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CVE-2022-44792

Published: 7 November 2022

handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote attacker (who has write access) to cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
net-snmp
Launchpad, Ubuntu, Debian
upstream Needs triage

bionic
Released (5.7.3+dfsg-1.8ubuntu3.8)
focal
Released (5.8+dfsg-2ubuntu2.6)
jammy
Released (5.9.1+dfsg-1ubuntu2.4)
kinetic
Released (5.9.3+dfsg-1ubuntu1.2)
trusty
Released (5.7.2~dfsg-8.1ubuntu3.3+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
xenial
Released (5.7.3+dfsg-1ubuntu4.6+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
lunar
Released (5.9.3+dfsg-1ubuntu4)
Patches:
upstream: https://github.com/net-snmp/net-snmp/commit/be804106fd0771a7d05236cff36e199af077af57

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H