PT-2022-3254 · Linux+4 · Linux Kernel+4

Published 2022-06-15 · Updated 2023-08-14 · CVE-2022-34495

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.18.4

Description The issue is related to a double free in the rpmsg probe function in the Linux kernel. This could potentially allow an attacker to cause a denial of service.

Recommendations For Linux kernel versions prior to 5.18.4, update to version 5.18.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the rpmsg probe function in drivers/rpmsg/virtio rpmsg bus.c to minimize the risk of exploitation.

Fix

Double Free

Weakness Enumeration

CWE-415

Related Identifiers

ALT-PU-2022-2050

ALT-PU-2022-2131

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-9987

BDU:2022-03970

CVE-2022-34495

USN-5529-1

USN-5623-1

USN-5624-1

USN-5633-1

USN-5635-1

USN-5640-1

USN-5644-1

USN-5648-1

USN-5655-1

USN-5683-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Linux Kernel

Ubuntu

References · 69

• https://github.com/torvalds/linux/commit/c2eecefec5df1306eafce28ccdf1ca159a552ecc · Patch
• https://osv.dev/vulnerability/USN-5635-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-5655-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-34495 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5655-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-33740 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-5635-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-2959 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-9987 · Vendor Advisory
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-34495 · Security Note
• https://ubuntu.com/security/CVE-2022-33742 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-34495 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-2318 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0426SE17 · Vendor Advisory