PT-2025-37902 · Linux+6 · Linux Kernel+6

Published 2023-04-23 · Updated 2025-11-03 · CVE-2023-53297

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description A flaw exists in the Linux kernel's Bluetooth L2CAP implementation related to an unlock balance issue within the l2cap disconnect rsp function. Specifically, the conn->chan lock is not acquired before calling l2cap get chan by scid. If l2cap get chan by scid returns NULL, a 'bad unlock balance' condition is triggered.

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

Exploit

Improper Resource Release

NULL Pointer Dereference

Weakness Enumeration

CWE-404

CWE-476

Related Identifiers

ALSA-2025:19102

ALSA-2025:19103

ALSA-2025_16880

ALSA-2025_18281

ALSA-2025_19102

ALSA-2025_19103

ALSA-2025_19409

BDU:2026-02282

CESA-2025_19102

CESA-2025_19103

CVE-2023-53297

INFSA-2025_19102

INFSA-2025_19103

RHSA-2024:2394

RHSA-2024_2394

RHSA-2025:19102

RHSA-2025:19103

RHSA-2025_19102

RHSA-2025_19103

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Almalinux

Astra Linux

Centos

Linux Kernel

Red Hat

Rocky Linux

Suse

References · 897

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53297.json · Exploit
• https://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7 · Patch
• https://linux.oracle.com/errata/ELSA-2025-23947.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53297 · Vendor Advisory
• https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce · Patch
• https://linux.oracle.com/errata/ELSA-2025-19102.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53297 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2025:19102 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02282 · Security Note
• https://errata.almalinux.org/8/ALSA-2025-19103.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53297 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53297 · Security Note
• https://errata.rockylinux.org/RLSA-2025:19103 · Vendor Advisory
• https://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2 · Patch