🛡️ CVE-2022-0400 on Ubuntu — linux

Distribution advisory

This page covers CVE-2022-0400 as tracked by Ubuntu, for the package linux. No fixed version has been recorded for this distribution yet.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: None.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

UBUNTU-CVE-2022-0400 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

UBUNTU-CVE-2022-0400 is recorded against 165 packages.

• linux
• linux-allwinner-5.19
• linux-aws
• linux-aws-5.0
• linux-aws-5.11
• linux-aws-5.13
• linux-aws-5.15
• linux-aws-5.19
• linux-aws-5.3
• linux-aws-5.4
• linux-aws-5.8
• linux-aws-6.14
• linux-aws-6.17
• linux-aws-6.2
• linux-aws-6.5
• linux-aws-6.8
• linux-aws-7.0
• linux-aws-fips
• linux-aws-hwe
• linux-azure
• linux-azure-4.15
• linux-azure-5.11
• linux-azure-5.13
• linux-azure-5.15

Timeline and source

Published on 29 August 2022 and last revised on 20 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
bugzilla.redhat.com (Report)
www.cve.org (Report)

Other advisories for this package

linux has other advisories on record. If you are patching this one, these are worth checking on the same host:

• DEBIAN-CVE-2022-4994 (published 30 Jul 2026)
• CVE-2026-35233 (4.4 Medium, published 1 May 2026)
• CVE-2026-21996 (3.3 Low, published 1 May 2026)
• CVE-2026-21991 (5.5 Medium, published 16 Mar 2026)
• CGA-mcwh-q4vm-9f29 (published 29 Jan 2026)
• CGA-w6xv-3fg4-grm5 (published 29 Jan 2026)
• CGA-3m96-cwq8-6xmx (published 7 Jan 2026)
• CGA-q945-42pm-prx5 (published 7 Jan 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-125: Out-of-bounds Read) in other software:

• CVE-2022-23594 (8.0 High, published 9 Jul 2026)
• CVE-2017-18009 (8.0 High, published 9 Jul 2026)
• CVE-2019-14491 (8.0 High, published 9 Jul 2026)
• CVE-2022-21728 (8.0 High, published 9 Jul 2026)
• CVE-2017-12599 (8.0 High, published 9 Jul 2026)
• CVE-2017-12598 (8.0 High, published 9 Jul 2026)
• CVE-2019-16249 (published 9 Jul 2026)
• CVE-2022-23560 (8.0 High, published 9 Jul 2026)

CVE-2022-0400 on other distributions

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

Details

Affected Packages

References