What is CVE-2023-1281?

CVE-2023-1281 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 4.14 onward. CVE-2023-1281 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-1281?

CVE-2023-1281 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-1281?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-1281 patch availability.

Is CVE-2023-1281 actively exploited?

CVE-2023-1281 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-2023-1281

High

Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.

Package Linux Kernel

Published 2023-03-22

Last modified 2025-02-13

CVSS version 3.1

Patch available

Not yet patched

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2023-1281 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

Affected versions

Linux kernel versions 4.14 and later are affected. No fixed version recorded yet.

Affected from

≥ 4.14

References

6 total

Kernel Git
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2

Patch Vendor Advisory
Kernel
https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2

Patch Vendor Advisory
Openwall
http://www.openwall.com/lists/oss-security/2023/04/11/3

Mailing List
Debian Security
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html

Mailing List Third Party Advisory

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2023-1281

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2023-03-22

Modified 2025-02-13

KEV No

Patch

Not yet patched

Package linux

Frequently asked questions

What is CVE-2023-1281?

CVE-2023-1281 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 4.14 onward . CVE-2023-1281 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-1281?

CVE-2023-1281 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-1281?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-1281 patch availability.
Is CVE-2023-1281 actively exploited?

No. CVE-2023-1281 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.