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CVE-2024-2494

Published: 20 March 2024

A flaw was found in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before the non-negative length check is performed by the C API entry points. Passing a negative length to the g_new0 function results in a crash due to the negative length being treated as a huge positive number. This flaw allows a local, unprivileged user to perform a denial of service attack by causing the libvirt daemon to crash.

Priority

Medium

Status

Package Release Status
libvirt
Launchpad, Ubuntu, Debian
bionic Needs triage

focal
Released (6.0.0-0ubuntu8.19)
jammy
Released (8.0.0-1ubuntu7.10)
mantic
Released (9.6.0-1ubuntu1.1)
trusty Needs triage

upstream Needs triage

xenial Needs triage

Patches:
upstream: https://gitlab.com/libvirt/libvirt/-/commit/8a3f8d957507c1f8223fdcf25a3ff885b15557f2