What’s Vulnerable › Vulnerabilities
CVE-2023-0881: DDoS in Ubuntu package linux-bluefield
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2025-03-31 · updated 2026-06-17
- Weakness: CWE-20
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 products
- Ubuntu package linux-bluefield: before 5.4.0-1058.64 — fixed in 5.4.0-1058.64
How to fix
Upgrade to a fixed version: Ubuntu package linux-bluefield 5.4.0-1058.64. Check the vendor advisory for mitigations.
References
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