CVE-2023-40283

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

14/08/2023

Last modified:

25/02/2026

Description

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.5 (including)	4.14.322 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.291 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.253 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.190 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.126 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.45 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.4.10 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:o:debian:debian_linux:11.0:::::::*
cpe:2.3:o:debian:debian_linux:12.0:::::::*
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:22.04::::lts:::

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-40283

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools