DEBIAN-CVE-2020-36557

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2020-36557
Published: 21 Jul 2022, 04:15
Last modified:28 Apr 2026, 20:21

Vulnerability Summary

Overall Risk (default)
low
20/100
CVSS Score
5.1 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

21 Jul 2022, 04:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:21
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.1CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • debian•linux

    < 5.5.17-1 | < 5.5.17-1 | < 5.5.17-1 | < 5.5.17-1

References (1)