CVE-2023-40283

HIGH

Linux Kernel 3.5-4.14.321 - Use-After-Free in L2CAP Socket Release

Title source: llm
STIX 2.1

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.

References (10)

Core 10
Core References
Third Party Advisory vendor-advisory
https://www.debian.org/security/2023/dsa-5480
Third Party Advisory vendor-advisory
https://www.debian.org/security/2023/dsa-5492
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Issue Tracking, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 1.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (9)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
canonical/ubuntu_linux 22.04
debian/debian_linux 10.0
debian/debian_linux 11.0
debian/debian_linux 12.0
linux/linux_kernel 3.5 - 4.14.322
Published Aug 14, 2023
Tracked Since Feb 18, 2026