cve/2021/CVE-2021-3975.md
2025-09-29 21:09:30 +02:00

961 B

CVE-2021-3975

Description

A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.

POC

Reference

No PoCs from references.

Github