DEBIAN-CVE-2020-25669

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2020-25669
Published: 26 May 2021, 12:15
Last modified:28 Apr 2026, 20:19

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 May 2021, 12:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:19
Last Modified
Vulnerability information updated

Description

A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•linux

    < 5.9.11-1 | < 5.9.11-1 | < 5.9.11-1 | < 5.9.11-1

References (1)