DEBIAN-CVE-2020-25656

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2020-25656
Published: 02 Dec 2020, 01:15
Last modified:28 Apr 2026, 20:19

Vulnerability Summary

Overall Risk (default)
low
16/100
CVSS Score
4.1 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Dec 2020, 01:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:19
Last Modified
Vulnerability information updated

Description

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected Systems

  • debian•linux

    < 5.9.6-1 | < 5.9.6-1 | < 5.9.6-1 | < 5.9.6-1

References (1)