PT-2022-5143 · Linux+5 · Linux Kernel+5

Duoming Zhou · Published 2022-04-02 · Updated 2026-05-26 · CVE-2022-1205

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the implementation of the Amateur Radio AX.25 protocol in the Linux kernel, specifically involving the use of memory after it has been freed. This can lead to a denial of service. A local user can exploit this flaw to crash the system by connecting with the protocol in a way that triggers a NULL pointer dereference.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Use After Free

Weakness Enumeration

CWE-476

CWE-416

Related Identifiers

ALT-PU-2022-1647

ALT-PU-2022-1730

ALT-PU-2022-1768

ALT-PU-2022-1810

ALT-PU-2022-1853

ALT-PU-2022-2155

ALT-PU-2023-1684

ALT-PU-2023-1741

ALT-PU-2023-1814

ALT-PU-2023-4894

AZL-10793

BDU:2022-06400

CVE-2022-1205

DSA-5127-1

DSA-5173-1

MGASA-2022-0154

MGASA-2022-0155

OESA-2022-1631

OESA-2022-1677

OPENSUSE-SU-2022_1163-1

OPENSUSE-SU-2022_1183-1

OPENSUSE-SU-2022_2520-1

OPENSUSE-SU-2022_2615-1

SUSE-SU-2022:1163-1

SUSE-SU-2022:1183-1

SUSE-SU-2022:1407-1

SUSE-SU-2022:2520-1

SUSE-SU-2022:2615-1

USN-5469-1

USN-5471-1

USN-5514-1

USN-5515-1

USN-5539-1

USN-5541-1

USN-6001-1

USN-6013-1

USN-6014-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Linux Kernel

Suse

Ubuntu

References · 513

• 🔥 https://openwall.com/lists/oss-security/2022/04/02/4 · Exploit
• https://github.com/torvalds/linux/commit/82e31755e55fbcea6a9dfaae5fe4860ade17cbc0 · Patch
• https://github.com/torvalds/linux/commit/fc6d01ff9ef03b66d4a3a23b46fc3c3d8cf92009 · Patch
• https://ubuntu.com/security/CVE-2021-28711 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-0168 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-3303 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-1462 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-36280 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5469-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5515-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-1048 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-4197 · Vendor Advisory
• https://osv.dev/vulnerability/USN-5469-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5173-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-1516 · Vendor Advisory