What is CVE-2022-42896?

CVE-2022-42896 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2022-42896 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-42896?

CVE-2022-42896 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-42896?

No patch is currently available for CVE-2022-42896. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2022-42896 actively exploited?

CVE-2022-42896 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2022-42896

High

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

Package Linux Kernel

Published 2022-11-23

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2022-42896 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2022-42896 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
Patch
Kernel patch commit
https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4
Patch

Details

CVE ID CVE-2022-42896

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2022-11-23

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-42896?

CVE-2022-42896 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2022-42896 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-42896?

CVE-2022-42896 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-42896?

No patch is currently available for CVE-2022-42896. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2022-42896 actively exploited?

No — CVE-2022-42896 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →