PT-2022-6417 · Linux+2 · Linux Kernel+2

Published 2022-01-06 · Updated 2023-10-18 · CVE-2023-23002

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 5.16.3

Description The issue is related to the misinterpretation of the devm gpiod get index optional return value in the drivers/bluetooth/hci qca.c file of the Linux kernel, which can lead to a denial of service. This is due to errors in pointer dereferencing.

Recommendations For versions prior to 5.16.3, update to version 5.16.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the hci qca.c driver until a patch is available.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

CWE-253

Related Identifiers

ALT-PU-2022-1171

ALT-PU-2022-1175

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-25610

BDU:2023-01217

CVE-2023-23002

Affected Products

Alt Linux

Astra Linux

Linux Kernel

References · 23

• https://github.com/torvalds/linux/commit/6845667146a28c09b5dfc401c1ad112374087944 · Patch
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3 · Patch
• https://osv.dev/vulnerability/CVE-2023-23002 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-23002 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-23002 · Security Note
• https://osv.dev/vulnerability/AZL-25610 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-23002 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-23002 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-23002 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-23002 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-23002 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-01217 · Security Note
• https://git.kernel.org/linus/6845667146a28c09b5dfc401c1ad112374087944 · Note
• https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=4579954bf4cc0bdfc4a42c88b16fe596f1e7f82d · Note
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.17 · Note