CVE-2020-12114

Description

A pivot_root race condition in fs/namespace.c in the Linux kernel 4.4.x before 4.4.221, 4.9.x before 4.9.221, 4.14.x before 4.14.178, 4.19.x before 4.19.119, and 5.x before 5.3 allows local users to cause a denial of service (panic) by corrupting a mountpoint reference counter.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.01%
Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html mailing list
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html mailing list
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html mailing list
https://www.debian.org/security/2020/dsa-4698 vendor advisory
https://www.debian.org/security/2020/dsa-4699 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html vendor advisory
https://usn.ubuntu.com/4388-1/ vendor advisory
https://usn.ubuntu.com/4392-1/ vendor advisory
https://usn.ubuntu.com/4389-1/ vendor advisory
https://usn.ubuntu.com/4387-1/ vendor advisory
https://usn.ubuntu.com/4390-1/ vendor advisory
https://usn.ubuntu.com/4391-1/ vendor advisory
https://www.oracle.com/security-alerts/cpuApr2021.html
https://security.netapp.com/advisory/ntap-20200608-0001/
http://www.openwall.com/lists/oss-security/2020/05/04/2 mailing list third party advisory patch
http://packetstormsecurity.com/files/159565/Kernel-Live-Patch-Security-Notice-LSN-0072-1.html

Frequently Asked Questions

What is the severity of CVE-2020-12114?
CVE-2020-12114 has been scored as a medium severity vulnerability.
How to fix CVE-2020-12114?
To fix CVE-2020-12114, 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-2020-12114 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-12114 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.
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