CVE-2020-25637
MEDIUM 6.7EPSS 0.5%
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
- libvirt
- CVSS v3.1 NVD
- 6.7 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C - EPSS
- 0.53% chance of exploitation in the next 30 days, 44th percentile
- Published
- 2020-10-06
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
- brahmiboudjema/CVE-2020-25637-libvirt-double-free0★ · 2020-12-11
Security advisories
- https://bugzilla.redhat.com/show_bug.cgi?id=1881037
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.html
- https://security.gentoo.org/glsa/202210-06