🛡️ CVE-2022-2905 — debian-linux

🟡 CVSS 5.5 — Medium ⚠️ Exploit Public CWE-125 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2022-2905 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2022-2905 is recorded against 3 packages.

  • debian-linux
  • enterprise-linux
  • linux-kernel

Timeline and source

Published on 9 September 2022 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

bugzilla.redhat.com
lists.debian.org
lore.kernel.org
bugzilla.redhat.com
lists.debian.org
lore.kernel.org

CVE-2022-2905 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE CWE-125
Public Exploit ⚠️ Yes
Source NVD
Published 2022-09-09
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
debian-linux — —
enterprise-linux — —
linux-kernel — —

Similar Threats

Exploit Protection

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