CVE-2022-32296

CVSS V2 Low 2.1 CVSS V3 Low 3.3

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.

Overview

CVE ID
CVE-2022-32296

Assigner
cve@mitre.org

Vulnerability Status
Modified

Published Version
2022-06-05T22:15:08

Last Modified Date
2022-09-28T15:15:13

Weakness Enumerations

CWE	URL
CWE-203	http://cwe.mitre.org/data/definitions/203.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:o:linux:linux_kernel::::::::	1	OR		5.17.9

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:P/I:N/A:N

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
NONE

Base Score
2.1

Severity
LOW

Exploitability Score
3.9

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
LOW

Availability Impact
NONE

Base Score
3.3

Base Severity
LOW

Exploitability Score
1.8

Impact Score
1.4

References

Reference URL	Reference Tags
https://arxiv.org/abs/2209.12993
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9	Release Notes Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5	Mailing List Patch Vendor Advisory
https://github.com/0xkol/rfc6056-device-tracker
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
https://www.debian.org/security/2022/dsa-5173

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-32296
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32296

History

Created	Old Value	New Value	Data Type	Notes
2022-06-05 23:00:10				Added to TrackCVE