Auth bypass in Linux Linux_kernel

CVE-2018-16597

An issue was discovered in the Linux kernel before 4.8. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem.

Vulnerability class: Broken Access Control

EPSS: 0.005 (41.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-16597?
CVE-2018-16597 is a medium-severity vulnerability in Linux Linux_kernel, classified under Incorrect Authorization. CVSS score: 5.5/10. Published 2018-09-21.
How severe is CVE-2018-16597?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2018-16597 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.