Vulnerability in Linux Kernel
CVE-2020-12114
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (36.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.debian.org/debian-lts-announce/2020/06/msg00011.html (mailing-list)
- lists.debian.org/debian-lts-announce/2020/06/msg00012.html (mailing-list)
- lists.debian.org/debian-lts-announce/2020/06/msg00013.html (mailing-list)
- www.debian.org/security/2020/dsa-4698 (vendor-advisory)
- www.debian.org/security/2020/dsa-4699 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html (vendor-advisory)
- usn.ubuntu.com/4388-1/ (vendor-advisory)
- usn.ubuntu.com/4392-1/ (vendor-advisory)
- usn.ubuntu.com/4389-1/ (vendor-advisory)
- usn.ubuntu.com/4387-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2020-12114?
- CVE-2020-12114 is a medium-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.7/10. Published 2020-05-04.
- How severe is CVE-2020-12114?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2020-12114 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.