VULNERABILITY INTELLIGENCE
CVE-2020-36557
CVSS score5.1 MEDIUM
EPSS probability0.20%
CISA KEVNot currently listed
Published2022-07-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
A race condition in the Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free.
Weakness classification
- nvd@nist.gov: CWE-362
Primary references
- cve@mitre.org — Patch, Release Notes, Vendor Advisory
- cve@mitre.org — Mailing List, Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Release Notes, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Patch, Vendor Advisory