PT-2023-4151 · Zephyr · Zephyr

Scepticz + 1 · Published 2023-07-10 · Updated 2024-11-07 · CVE-2023-1902

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

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

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

Description The issue is related to a Bluetooth protocol implementation flaw in the Zephyr real-time operating system, involving the use of memory after it has been freed. This could allow a remote attacker to cause a denial of service or potentially execute arbitrary code. The bluetooth HCI host layer logic fails to clear a global reference to a state pointer after handling connection events, which may enable a malicious HCI Controller to cause the use of a dangling reference in the host layer, leading to a crash or potential remote code execution on the Host layer.

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

Use After Free

Weakness Enumeration

CWE-672

CWE-416

Related Identifiers

BDU:2023-04462

CVE-2023-1902

GHSA-FX9G-8FR2-Q899

Affected Products

Zephyr

References · 6

• https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fx9g-8fr2-q899 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-1902 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-04462 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-1902 · Security Note
• https://t.me/cibsecurity/66278 · Telegram Post
• https://t.me/cvenotify/100948 · Telegram Post