PT-2022-3221 · Linux+5 · Linux Kernel+5

Amit Klein + 2 · Published 2022-05-18 · Updated 2023-08-14 · CVE-2022-32296

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

AV:N/AC:H/Au:S/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.17.9

Description The issue is related to insufficient entropy in the Linux kernel, allowing a remote attacker to identify clients by determining the original source ports used by the TCP server. This is due to the use of Algorithm 4, also known as the Double-Hash Port Selection Algorithm, as defined in RFC 6056.

Recommendations For Linux kernel versions prior to 5.17.9, update to version 5.17.9 or later to resolve the issue.

Fix

Side Channel Attack

Use of Insufficiently Random Values

Weakness Enumeration

CWE-331

CWE-203

CWE-330

Related Identifiers

ALT-PU-2022-1886

ALT-PU-2022-1971

ALT-PU-2022-2152

ALT-PU-2022-2155

ALT-PU-2023-1684

ALT-PU-2023-1741

ALT-PU-2023-1814

ALT-PU-2023-4894

AZL-9910

BDU:2022-03921

CVE-2022-32296

DLA-3065-1

DSA-5173-1

OESA-2022-1725

OPENSUSE-SU-2022_3693-1

OPENSUSE-SU-2022_3844-1

OPENSUSE-SU-2022_4617-1

SUSE-SU-2022:3693-1

SUSE-SU-2022:3704-1

SUSE-SU-2022:3809-1

SUSE-SU-2022:3844-1

SUSE-SU-2022:4617-1

USN-5616-1

USN-5622-1

USN-5623-1

USN-5630-1

USN-5639-1

USN-5647-1

USN-5654-1

USN-5660-1

USN-5669-1

USN-5669-2

USN-5678-1

USN-5679-1

USN-5684-1

USN-5687-1

USN-5695-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Linux Kernel

Suse

Ubuntu

References · 589

• https://ubuntu.com/security/CVE-2022-33740 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-33742 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5679-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2022-0819SE17 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-33743 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-1012 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-32296 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:3704-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-26365 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-03921 · Security Note
• https://ubuntu.com/security/CVE-2022-33741 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-2873 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-9910 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5622-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3065-1 · Vendor Advisory