CVE-2022-42896

2022-11-2300:00:00

ubuntu.com

162

linux kernel

bluetooth

use-after-free

code execution

kernel memory

remote attack

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

51.3%

JSON

There are use-after-free vulnerabilities in the Linux kernel’s
net/bluetooth/l2cap_core.c’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. We
recommend upgrading past commit https://www.google.com/url
https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
https://www.google.com/url

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-202.213UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-137.154UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-58.64UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-29.30UNKNOWN
ubuntu23.04noarchlinux< 6.1.0-16.16UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-236.270UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1148.160UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1094.102UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1028.32UNKNOWN
ubuntu22.10noarchlinux-aws< 5.19.0-1017.18UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-202.213	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-137.154	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-58.64	UNKNOWN
ubuntu	22.10	noarch	linux	< 5.19.0-29.30	UNKNOWN
ubuntu	23.04	noarch	linux	< 6.1.0-16.16	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-236.270	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1148.160	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1094.102	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1028.32	UNKNOWN
ubuntu	22.10	noarch	linux-aws	< 5.19.0-1017.18	UNKNOWN