DEBIAN-CVE-2021-20239

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2021-20239
Published: 28 May 2021, 11:15
Last modified:28 Apr 2026, 20:21

Vulnerability Summary

Overall Risk (default)
low
13/100
CVSS Score
3.3 LOW
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

28 May 2021, 11:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:21
Last Modified
Vulnerability information updated

Description

A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.

CVSS Metrics

  • v3.1•LOW•Score: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Systems

  • debian•linux

    < 5.10.4-1 | < 5.10.4-1 | < 5.10.4-1 | < 5.10.4-1

References (1)