CVE-2022-2905

medium

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.

References

https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel%40iogearbox.net/

https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-35133

https://cert-portal.siemens.com/productcert/html/ssa-831302.html

https://cert-portal.siemens.com/productcert/html/ssa-794697.html

https://bugzilla.redhat.com/show_bug.cgi?id=2121800

Details

Source: Mitre, NVD

Published: 2022-09-09

Updated: 2026-10-14

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N