CVE-2020-25637

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.

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory redhat.com
Affected: n/a libvirt
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1881037 patch vendor advisory issue tracking
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.html vendor advisory mailing list third party advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.html vendor advisory mailing list third party advisory
https://security.gentoo.org/glsa/202210-06 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html mailing list

Frequently Asked Questions

What is the severity of CVE-2020-25637?
CVE-2020-25637 has been scored as a medium severity vulnerability.
How to fix CVE-2020-25637?
To fix CVE-2020-25637, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-25637 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-25637 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-25637?
CVE-2020-25637 affects n/a libvirt.
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