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Alma Linux: CVE-2020-25637: Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update (ALSA-2021-1762)

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Alma Linux: CVE-2020-25637: Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update (ALSA-2021-1762)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
10/06/2020
Created
05/05/2022
Added
05/04/2022
Modified
09/15/2022

Description

A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Solution(s)

  • alma-upgrade-hivex
  • alma-upgrade-hivex-devel
  • alma-upgrade-libguestfs-winsupport
  • alma-upgrade-libiscsi
  • alma-upgrade-libiscsi-devel
  • alma-upgrade-libiscsi-utils
  • alma-upgrade-libnbd
  • alma-upgrade-libnbd-devel
  • alma-upgrade-libvirt-dbus
  • alma-upgrade-nbdfuse
  • alma-upgrade-nbdkit
  • alma-upgrade-nbdkit-bash-completion
  • alma-upgrade-nbdkit-basic-filters
  • alma-upgrade-nbdkit-basic-plugins
  • alma-upgrade-nbdkit-curl-plugin
  • alma-upgrade-nbdkit-devel
  • alma-upgrade-nbdkit-example-plugins
  • alma-upgrade-nbdkit-gzip-plugin
  • alma-upgrade-nbdkit-linuxdisk-plugin
  • alma-upgrade-nbdkit-python-plugin
  • alma-upgrade-nbdkit-server
  • alma-upgrade-nbdkit-ssh-plugin
  • alma-upgrade-nbdkit-vddk-plugin
  • alma-upgrade-nbdkit-xz-filter
  • alma-upgrade-netcf
  • alma-upgrade-netcf-devel
  • alma-upgrade-netcf-libs
  • alma-upgrade-ocaml-hivex
  • alma-upgrade-ocaml-hivex-devel
  • alma-upgrade-ocaml-libguestfs
  • alma-upgrade-ocaml-libguestfs-devel
  • alma-upgrade-ocaml-libnbd
  • alma-upgrade-ocaml-libnbd-devel
  • alma-upgrade-perl-Sys-Virt
  • alma-upgrade-perl-hivex
  • alma-upgrade-python3-hivex
  • alma-upgrade-python3-libnbd
  • alma-upgrade-python3-libvirt
  • alma-upgrade-ruby-hivex
  • alma-upgrade-seabios
  • alma-upgrade-seabios-bin
  • alma-upgrade-seavgabios-bin
  • alma-upgrade-sgabios
  • alma-upgrade-sgabios-bin
  • alma-upgrade-supermin
  • alma-upgrade-supermin-devel

References

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