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.
Published 2021-05-28 11:15:08
Updated 2022-08-05 15:20:40
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: OverflowInformation leak

Exploit prediction scoring system (EPSS) score for CVE-2021-20239

Probability of exploitation activity in the next 30 days: 0.04%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 10 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-20239

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
2.1
LOW AV:L/AC:L/Au:N/C:P/I:N/A:N
3.9
2.9
NIST
3.3
LOW CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
1.8
1.4
NIST

CWE ids for CVE-2021-20239

References for CVE-2021-20239

Products affected by CVE-2021-20239

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