🛡️ CVE-2022-32296 — linux-kernel

🟢 CVSS 3.3 — Low ✅ No Known Exploit CWE-330 NVD
3.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.

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 low, integrity none, availability none.

Weakness class

CVE-2022-32296 is classified as CWE-330: Use of Insufficiently Random Values. Values that must be unpredictable are generated in a way an attacker can guess or reproduce.

Affected software

CVE-2022-32296 is recorded against 1 package.

  • linux-kernel (fixed in 5.17.9)

Timeline and source

Published on 5 June 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

arxiv.org
cdn.kernel.org
git.kernel.org
github.com
lists.debian.org
www.debian.org
arxiv.org
cdn.kernel.org
git.kernel.org
github.com
lists.debian.org
www.debian.org

CVE-2022-32296 on other distributions

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

Details

Severity LOW
CVSS Score 3.3
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE CWE-330
Public Exploit ✅ No
Source NVD
Published 2022-06-05
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
linux-kernel — 5.17.9

References

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.