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SUSE: CVE-2021-3975: SUSE Linux Security Advisory

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SUSE: CVE-2021-3975: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
01/05/2022
Created
01/08/2022
Added
01/06/2022
Modified
10/26/2022

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)

  • suse-upgrade-libvirt
  • suse-upgrade-libvirt-admin
  • suse-upgrade-libvirt-bash-completion
  • suse-upgrade-libvirt-client
  • suse-upgrade-libvirt-daemon
  • suse-upgrade-libvirt-daemon-config-network
  • suse-upgrade-libvirt-daemon-config-nwfilter
  • suse-upgrade-libvirt-daemon-driver-interface
  • suse-upgrade-libvirt-daemon-driver-libxl
  • suse-upgrade-libvirt-daemon-driver-lxc
  • suse-upgrade-libvirt-daemon-driver-network
  • suse-upgrade-libvirt-daemon-driver-nodedev
  • suse-upgrade-libvirt-daemon-driver-nwfilter
  • suse-upgrade-libvirt-daemon-driver-qemu
  • suse-upgrade-libvirt-daemon-driver-secret
  • suse-upgrade-libvirt-daemon-driver-storage
  • suse-upgrade-libvirt-daemon-driver-storage-core
  • suse-upgrade-libvirt-daemon-driver-storage-disk
  • suse-upgrade-libvirt-daemon-driver-storage-iscsi
  • suse-upgrade-libvirt-daemon-driver-storage-logical
  • suse-upgrade-libvirt-daemon-driver-storage-mpath
  • suse-upgrade-libvirt-daemon-driver-storage-rbd
  • suse-upgrade-libvirt-daemon-driver-storage-scsi
  • suse-upgrade-libvirt-daemon-hooks
  • suse-upgrade-libvirt-daemon-lxc
  • suse-upgrade-libvirt-daemon-qemu
  • suse-upgrade-libvirt-daemon-xen
  • suse-upgrade-libvirt-devel
  • suse-upgrade-libvirt-doc
  • suse-upgrade-libvirt-libs
  • suse-upgrade-libvirt-lock-sanlock
  • suse-upgrade-libvirt-nss

References

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