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CVE-2022-32296

Good to know:

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Date: June 5, 2022

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.

Language: C

Severity Score

Related Resources (10)

https://github.com/0xkol/rfc6056-device-tracker
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
https://nvd.nist.gov/vuln/detail/CVE-2022-32296
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5
https://security-tracker.debian.org/tracker/CVE-2022-32296
https://www.debian.org/security/2022/dsa-5173
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-32296
https://arxiv.org/abs/2209.12993
https://www.mend.io/vulnerability-database/CVE-2022-32296

Severity Score

Weakness Type (CWE)

Use of Insufficiently Random Values

CWE-330

Observable Discrepancy

CWE-203

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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