PT-2021-8042 · Linux+4 · Linux Kernel+4

Syzbot · Published 2021-12-31 · Updated 2023-08-14 · CVE-2022-0382

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.17-rc1

Description The issue is related to an information leak flaw in the Linux kernel's TIPC protocol subsystem. This flaw occurs due to uninitialized memory when a user sends a TIPC datagram to one or more destinations, allowing a local user to read some kernel memory. The issue is limited to no more than 7 bytes, and the user cannot control what is read.

Recommendations For Linux kernel versions prior to 5.17-rc1, update to version 5.17-rc1 or later to resolve the issue. As a temporary workaround, consider restricting access to the TIPC protocol subsystem until a patch is available.

Exploit

Fix

Weakness Enumeration

CWE-909

Related Identifiers

ALT-PU-2022-1387

ALT-PU-2022-1456

ALT-PU-2022-1647

ALT-PU-2022-2155

ALT-PU-2023-1684

ALT-PU-2023-1741

ALT-PU-2023-1814

ALT-PU-2023-4894

AZL-8579

BDU:2024-04166

CVE-2022-0382

USN-5278-1

USN-5337-1

USN-5368-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Linux Kernel

Ubuntu

References · 51

• 🔥 https://github.com/torvalds/linux/commit/d6d86830705f173fca6087a3e67ceaf68db80523 · Exploit
• https://ubuntu.com/security/CVE-2021-4155 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-1055 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-0382 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-39698 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-28713 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-4001 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-0742 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-45480 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-0382 · Security Note
• https://ubuntu.com/security/CVE-2021-28714 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-22600 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-0382 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-0382 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-39685 · Vendor Advisory