PT-2023-2056 · Linux+6 · Linux Kernel+6

Peng Hui + 1 · Published 2023-03-20 · Updated 2025-06-30 · CVE-2023-28866

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 6.2.8

Description The issue is related to out-of-bounds access in the Linux kernel, specifically in the net/bluetooth/hci sync.c file. This is due to the amp init1[] and amp init2[] arrays not having an intentionally invalid element as supposed. The vulnerability can be exploited by a remote attacker to disclose protected information.

Recommendations For Linux kernel versions through 6.2.8, update to a version later than 6.2.8 to resolve the issue. As a temporary workaround, consider restricting access to the net/bluetooth/hci sync.c module to minimize the risk of exploitation.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALSA-2024:2394

ALT-PU-2023-1542

ALT-PU-2023-1650

ALT-PU-2023-7439

ALT-PU-2024-14046

ALT-PU-2024-6818

AZL-25933

BDU:2023-01778

CVE-2023-28866

INFSA-2024_2394

OPENSUSE-SU-2023_2871-1

OPENSUSE-SU-2023_2892-1

RHSA-2024:2394

RHSA-2024_2394

SUSE-SU-2023:2809-1

SUSE-SU-2023:2871-1

SUSE-SU-2023:2892-1

SUSE-SU-2025:01966-1

SUSE-SU-2025:02173-1

SUSE-SU-2025:2173-1

SUSE-SU-2025_02173-1

USN-6033-1

USN-6175-1

USN-6186-1

Affected Products

Alt Linux

Almalinux

Linuxmint

Linux Kernel

Red Hat

Suse

Ubuntu

References · 1118

• https://security-tracker.debian.org/tracker/CVE-2023-28866 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-28866 · Security Note
• https://osv.dev/vulnerability/USN-6033-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-1998 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-25012 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:01966-1 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-25933 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-28866 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-4269 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2024:2394 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-28866 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-1829 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-01778 · Security Note
• https://ubuntu.com/security/CVE-2023-28466 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-1583 · Vendor Advisory