CVE-2020-25637: Opensuse Leap

Medium severity, CVSS 6.7. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

  • Opensuse Leap: version 15.1 only; version 15.2 only
  • Red Hat Libvirt: before 6.8.0 (fixed in 6.8.0)

Published 2020-10-06. Last modified 2026-06-17.