CVE-2020-14339

Description

A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory gentoo.org Vendor Advisory gentoo.org
Affected: n/a libvirt
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1860069 issue tracking third party advisory patch
https://security.gentoo.org/glsa/202101-22 third party advisory vendor advisory
https://security.gentoo.org/glsa/202210-06 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-14339?
CVE-2020-14339 has been scored as a high severity vulnerability.
How to fix CVE-2020-14339?
To fix CVE-2020-14339, 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-2020-14339 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-14339 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-2020-14339?
CVE-2020-14339 affects n/a libvirt.
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