What is CVE-2023-2612?

CVE-2023-2612 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Improper Locking flaw (CWE-667). CVE-2023-2612 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-2612?

CVE-2023-2612 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-2612?

No patch is currently available for CVE-2023-2612. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-2612 actively exploited?

CVE-2023-2612 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/667.html

CVE-2023-2612

Medium

Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).

Package Linux Kernel

Published 2023-05-31

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-667

CVE-2023-2612 is a Improper Locking vulnerability

What is Improper Locking?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-2612 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Packet Storm
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
Ubuntu Security
https://ubuntu.com/security/CVE-2023-2612

Vendor Advisory
Ubuntu Security
https://ubuntu.com/security/notices/USN-6122-1

Vendor Advisory
Ubuntu Security
https://ubuntu.com/security/notices/USN-6123-1

Vendor Advisory
Ubuntu Security
https://ubuntu.com/security/notices/USN-6124-1

Vendor Advisory
Ubuntu Security
https://ubuntu.com/security/notices/USN-6127-1

Vendor Advisory
Kernel patch commit
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?id=02b47547824b1cd0d55c6744f91886f04de8947e
Patch

Details

CVE ID CVE-2023-2612

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2023-05-31

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-2612?

CVE-2023-2612 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as an Improper Locking flaw (CWE-667) . CVE-2023-2612 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-2612?

CVE-2023-2612 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-2612?

No patch is currently available for CVE-2023-2612. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-2612 actively exploited?

No — CVE-2023-2612 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. View CWE-667 on MITRE CWE →