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CVE-2024-3651

7.5 · HIGH

A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6.

Published Jul 7, 2024CWE-1333EPSS 1.39%

Overview

CVE-2024-3651 is a high-severity vulnerability. It was published on July 7, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6. The issue arises from the function's handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the `idna.encode()` function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/kjd/idna/commit/1d365e17e10d72d0b7876316fc7b9ca0eebdd38dRefhuntr.com/bounties/93d78d07-d791-4b39-a845-cbfabc44aadbGitHubgithub.com/kjd/idna/commit/1d365e17e10d72d0b7876316fc7b9ca0eebdd38dRefhuntr.com/bounties/93d78d07-d791-4b39-a845-cbfabc44aadbReflists.debian.org/debian-lts-announce/2024/05/msg00006.htmlReflists.fedoraproject.org/archives/list/[email protected]/message/4YQUPYH3SVZ5GFF2CDQ55FCM575AZTF2/Reflists.fedoraproject.org/archives/list/[email protected]/message/F2S5E23N6E52S46KGNYTDFB75LOC4N4D/Reflists.fedoraproject.org/archives/list/[email protected]/message/S5IDLLD2IKSIVRBSLB34WTSYGLMWUFWF/Reflists.fedoraproject.org/archives/list/[email protected]/message/ULSC7HBJKXB3BZV367WM5BR6DFEC4Z43/

How CyberStrike helps

Frequently asked questions

What is CVE-2024-3651?

CVE-2024-3651 is a high-severity vulnerability. It was published on July 7, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-3651?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-3651?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-3651?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-3651 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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