What is CVE-2022-3640?

CVE-2022-3640 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, classified as a Buffer Overflow flaw (CWE-119), affecting Linux kernel versions from n/a onward. CVE-2022-3640 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-3640?

CVE-2022-3640 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-2022-3640?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-3640 patch availability.

Is CVE-2022-3640 actively exploited?

CVE-2022-3640 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2022-3640

High

A vulnerability, which was classified as critical, was found in Linux Kernel. Affected is the function l2cap_conn_del of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211944.

Package Linux Kernel

Published 2022-10-21

Last modified 2024-11-21

CVSS version 3.1

Patch available

Not yet patched

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-119

CVE-2022-3640 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

Affected versions

Linux kernel versions n/a and later are affected. No fixed version recorded yet.

Affected from

≥ n/a

References

7 total

Kernel Git
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=42cf46dea905a80f6de218e837ba4d4cc33d6979

Exploit Mailing List Patch Vendor Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html

Mailing List Third Party Advisory
Lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DGOIRR72OAFE53XZRUDZDP7INGLIC3E3/
Lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD7VWUT7YAU4CJ247IF44NGVOAODAJGC/

Showing 5 of 7 references View all on NVD

Details

CVE ID CVE-2022-3640

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2022-10-21

Modified 2024-11-21

KEV No

Patch

Not yet patched

Package linux

Frequently asked questions

What is CVE-2022-3640?

CVE-2022-3640 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . It affects Linux kernel versions from n/a onward . CVE-2022-3640 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-3640?

CVE-2022-3640 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-2022-3640?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2022-3640 patch availability.
Is CVE-2022-3640 actively exploited?

No. CVE-2022-3640 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.