CVE-2022-42896

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

23/11/2022

Last modified:

07/11/2023

Description

There are use-after-free vulnerabilities in the Linux kernel&#39;s net/bluetooth/l2cap_core.c&#39;s l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim.<br /> <br /> We recommend upgrading past commit https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url <br /> <br />

Impact

Vector 3.x

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

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

8.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.9.335 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.301 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.268 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.226 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.154 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.78 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.0.8 (excluding)

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

CVE-2022-42896

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools