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CVE-2023-0881

Canonical Linux-bluefield vulnerability

7.5 HIGHPublic exploitEPSS 0.43%
  1. Published31 Mar 2025

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Canonical Linux-bluefield< 5.4.0-1058.64

Remediation

Fixed in
Canonical Linux-bluefield≥ 5.4.0-1058.64

References

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Frequently asked

Is CVE-2023-0881 being actively exploited?

CVE-2023-0881 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.43%.

How severe is CVE-2023-0881?

CVE-2023-0881 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2023-0881?

Affected products include Canonical Linux-bluefield.

How do I fix CVE-2023-0881?

Upgrade affected software to a fixed version, for example Canonical Linux-bluefield 5.4.0-1058.64 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-0881 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.