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CVE-2022-2905

Public on 2022-09-09
Modified on 2022-10-25
Description

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

Severity
Medium
See what this means
CVSS v3 Base Score
6.2
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-09-30 07:10 ALAS2KERNEL-5.10-2022-020
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-09-30 07:10 ALAS2KERNEL-5.15-2022-008
Amazon Linux 2023 kernel 2023-02-17 20:46 ALAS2023-2023-070

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Red Hat: CVE-2022-2905 Mitre: CVE-2022-2905 FAQs regarding Amazon Linux ALAS/CVE Severity