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CVE-2023-40283

Date: August 13, 2023

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.

Language: C

Severity Score

7.8

Related Resources (12)

Url: https://www.debian.org/security/2023/dsa-5492

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-40283

Url: https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

Url: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.10

Url: https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Url: https://www.debian.org/security/2023/dsa-5480

Url: https://github.com/torvalds/linux/commit/1728137b33c00d5a2b5110ed7aafb42e7c32e4a1

Url: https://security.netapp.com/advisory/ntap-20231020-0007/

Url: http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html

Url: http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html

Url: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1728137b33c00d5a2b5110ed7aafb42e7c32e4a1

Url: https://www.mend.io/vulnerability-database/CVE-2023-40283

Severity Score

7.8

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:	7.8
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

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