CVE-2023-0881

High

Running DDoS on tcp port 22 will trigger a kernel crash. This issue is introduced by the backport of a commit regarding nft_lookup without the subsequent fixes that were introduced after this commit. The resolution of this CVE introduces those commits to the linux-bluefield package.

Package Linux Kernel
Published 2025-03-31
Last modified 2025-08-26
CVSS version 3.1
Patch available
Not yet patched

CVSS 3.1 score

7.5

out of 10
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-20

CVE-2023-0881 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.4.0-1001.2 and later are affected. No fixed version recorded yet.

Affected from
≥ 5.4.0-1001.2

References

The following references provide additional information about CVE-2023-0881 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2023-0881?

    CVE-2023-0881 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . It affects Linux kernel versions from 5.4.0-1001.2 onward . CVE-2023-0881 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-0881?

    CVE-2023-0881 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2023-0881?

    No patch is currently available for CVE-2023-0881. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2023-0881 actively exploited?

    No — CVE-2023-0881 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Improper Input Validation (CWE-20)?

    The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. View CWE-20 on MITRE CWE →

Back to
All CVEs
View on
NVD / NIST