IM
IronMonkey Threat Research

CVE-2023-40283 HIGH

Published: 2023-08-14 | Last Modified: 2026-02-25 | Status: Modified

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.

CVSS Metrics

Base Score: 7.8 (HIGH)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactHIGH
Integrity ImpactHIGH
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 5.9

Weaknesses

Source Type Description
[email protected] Primary
en CWE-416
134c704f-9b21-4f2e-91b3-4a467353bcc0 Secondary
en CWE-416

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd384212a80> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd3842100c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd38477c880> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36b30dec0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd384212440> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd384211e40> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd2a1f93d40> Operating System
debian debian_linux 10.0 <built-in method update of dict object at 0x7fd36b30e880> Operating System
debian debian_linux 11.0 <built-in method update of dict object at 0x7fd348bbc7c0> Operating System
debian debian_linux 12.0 <built-in method update of dict object at 0x7fd384212600> Operating System
canonical ubuntu_linux 14.04 <built-in method update of dict object at 0x7fd38477c280> Operating System
canonical ubuntu_linux 16.04 <built-in method update of dict object at 0x7fd34bb9ce40> Operating System
canonical ubuntu_linux 18.04 <built-in method update of dict object at 0x7fd36b4e9440> Operating System
canonical ubuntu_linux 20.04 <built-in method update of dict object at 0x7fd38477e1c0> Operating System
canonical ubuntu_linux 22.04 <built-in method update of dict object at 0x7fd2a1f91240> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Yes cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Yes cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
Yes cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Yes cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Yes cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
Yes cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:*

References