Ubuntu linux-bluefield prior 5.4.0-1058.64 nft_lookup denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Ubuntu linux-bluefield. It has been classified as critical. Affected by this vulnerability is the function nft_lookup. Performing a manipulation results in denial of service. This vulnerability is identified as CVE-2023-0881. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Ubuntu linux-bluefield. It has been classified as critical. This affects the function nft_lookup. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

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.

The weakness was released by Dann Frazier. The advisory is shared at bugs.launchpad.net. This vulnerability is uniquely identified as CVE-2023-0881 since 02/17/2023. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 5.4.0-1058.64 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (canonical): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: linux-bluefield 5.4.0-1058.64

Timelineinfo

02/17/2023 🔍
03/31/2025 +772 days 🔍
03/31/2025 +0 days 🔍
03/31/2025 +0 days 🔍

Sourcesinfo

Vendor: ubuntu.com

Advisory: bugs.launchpad.net
Researcher: Dann Frazier
Status: Confirmed

CVE: CVE-2023-0881 (🔍)
GCVE (CVE): GCVE-0-2023-0881
GCVE (VulDB): GCVE-100-302181

Entryinfo

Created: 03/31/2025 15:48
Changes: 03/31/2025 15:48 (65)
Complete: 🔍
Cache ID: 216::103

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