CVE-2024-2494 Information

Description

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.

Reference

https://access.redhat.com/security/cve/CVE-2024-2494 https://bugzilla.redhat.com/show_bug.cgi?id=2270115 https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/BKRQXPLPC6B7FLHJXSBQYW7HNDEBW6RJ/