CVE-2012-4423: Red Hat Libvirt

Medium severity, CVSS 5.0. EPSS: 3.7% chance of exploitation in the next 30 days.

The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.

Affected products

• Red Hat Libvirt: up to and including 0.10.1; version 0.0.1 only; version 0.0.2 only; version 0.0.3 only; version 0.0.4 only; version 0.0.5 only; …

Published 2012-11-19. Last modified 2026-06-16.