CVE-2023-0881: linux-bluefield — 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.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-20 Improper Input Validation

CWE-1333 CWE-1333

Affected Products

Vendor	Product	Versions
canonical	linux-bluefield	< 5.4.0-1058.64

References

Exploits

https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2006397

Frequently Asked Questions

What is CVE-2023-0881? +

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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-0881? +

CVE-2023-0881 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-0881? +

CVE-2023-0881 affects products from canonical, specifically: linux-bluefield. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-0881? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2023-0881