CVE-2023-0881

DDoS in Ubuntu package linux-bluefield

HIGH
7.5
CVSS Score
Published: March 31, 2025 at 01:28 PM UTC
Updated: June 17, 2026 at 05:26 AM UTC
2 products affected across 2 vendorsLinux BluefieldUbuntu package linux-bluefield

Using Ubuntu package linux-bluefield by Ubuntu?

Get instant alerts when new vulnerabilities affect Ubuntu package linux-bluefield - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.4.0-1058.64
Affected range stops below 5.4.0-1058.64, so it looks safe — our inference, not a vendor statement
5.4.0-1001.2 ≤ v < 5.4.0-1058.645.4.0-1001.2
Affected range stops below 5.4.0-1058.64, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHcanonical
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20CWE-1333

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card