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Debian: CVE-2021-3975: libvirt -- security update

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Debian: CVE-2021-3975: libvirt -- security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/23/2022
Created
04/04/2024
Added
04/03/2024
Modified
04/03/2024

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.

Solution(s)

  • debian-upgrade-libvirt

References

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