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PRIOn knowledge basePRION:CVE-2021-3975HistoryAug 23, 2022 - 8:15 p.m.
Design/Logic Flaw
2022-08-2320:15:00
PRIOn knowledge base
www.prio-n.com
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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.
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