CVE-2020-12114

LOW

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.

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html

http://packetstormsecurity.com/files/159565/Kernel-Live-Patch-Security-Notice-LSN-0072-1.html

http://www.openwall.com/lists/oss-security/2020/05/04/2

https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

https://security.netapp.com/advisory/ntap-20200608-0001/

https://usn.ubuntu.com/4387-1/

https://usn.ubuntu.com/4388-1/

https://usn.ubuntu.com/4389-1/

https://usn.ubuntu.com/4390-1/

https://usn.ubuntu.com/4391-1/

https://usn.ubuntu.com/4392-1/

https://www.debian.org/security/2020/dsa-4698

https://www.debian.org/security/2020/dsa-4699

Details

Source: MITRE

Published: 2020-05-04

Updated: 2020-10-14

Type: CWE-362

Risk Information

CVSS v2.0

Base Score: 1.9

Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.4

Severity: LOW

CVSS v3.0

Base Score: 4.7

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1

Severity: MEDIUM