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Ubuntu: USN-5399-1 (CVE-2020-25637): libvirt vulnerabilities

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Ubuntu: USN-5399-1 (CVE-2020-25637): libvirt vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
10/06/2020
Created
05/05/2022
Added
05/03/2022
Modified
05/03/2022

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)

  • ubuntu-upgrade-libvirt-daemon
  • ubuntu-upgrade-libvirt-daemon-system
  • ubuntu-upgrade-libvirt0

References

  • USN-5399-1
  • CVE-2020-25637

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