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Alma Linux: CVE-2024-2494: Moderate: libvirt security and bug fix update (ALSA-2024-2560)

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Alma Linux: CVE-2024-2494: Moderate: libvirt security and bug fix update (ALSA-2024-2560)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/21/2024
Created
05/08/2024
Added
05/08/2024
Modified
05/08/2024

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.

Solution(s)

  • alma-upgrade-libvirt
  • alma-upgrade-libvirt-client
  • alma-upgrade-libvirt-client-qemu
  • alma-upgrade-libvirt-daemon
  • alma-upgrade-libvirt-daemon-common
  • alma-upgrade-libvirt-daemon-config-network
  • alma-upgrade-libvirt-daemon-config-nwfilter
  • alma-upgrade-libvirt-daemon-driver-interface
  • alma-upgrade-libvirt-daemon-driver-network
  • alma-upgrade-libvirt-daemon-driver-nodedev
  • alma-upgrade-libvirt-daemon-driver-nwfilter
  • alma-upgrade-libvirt-daemon-driver-qemu
  • alma-upgrade-libvirt-daemon-driver-secret
  • alma-upgrade-libvirt-daemon-driver-storage
  • alma-upgrade-libvirt-daemon-driver-storage-core
  • alma-upgrade-libvirt-daemon-driver-storage-disk
  • alma-upgrade-libvirt-daemon-driver-storage-iscsi
  • alma-upgrade-libvirt-daemon-driver-storage-logical
  • alma-upgrade-libvirt-daemon-driver-storage-mpath
  • alma-upgrade-libvirt-daemon-driver-storage-rbd
  • alma-upgrade-libvirt-daemon-driver-storage-scsi
  • alma-upgrade-libvirt-daemon-kvm
  • alma-upgrade-libvirt-daemon-lock
  • alma-upgrade-libvirt-daemon-log
  • alma-upgrade-libvirt-daemon-plugin-lockd
  • alma-upgrade-libvirt-daemon-plugin-sanlock
  • alma-upgrade-libvirt-daemon-proxy
  • alma-upgrade-libvirt-devel
  • alma-upgrade-libvirt-docs
  • alma-upgrade-libvirt-libs
  • alma-upgrade-libvirt-nss

References

  • https://attackerkb.com/topics/cve-2024-2494
  • CVE - 2024-2494
  • https://errata.almalinux.org/9/ALSA-2024-2560.html
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