CVE-2024-3651
HIGHkjd/idna < 3.7 - Denial of Service via Quadratic Complexity in idna.encode()
Title source: llmDescription
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.
References (7)
Core 7
Core References
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/4YQUPYH3SVZ5GFF2CDQ55FCM575AZTF2/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/F2S5E23N6E52S46KGNYTDFB75LOC4N4D/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/S5IDLLD2IKSIVRBSLB34WTSYGLMWUFWF/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/ULSC7HBJKXB3BZV367WM5BR6DFEC4Z43/
Scores
CVSS v3
7.5
EPSS
0.0107
EPSS Percentile
60.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1333
Status
published
Products (2)
kjd/internationalized_domain_names_in_applications
0.2 - 3.7
pypi/idna
0 - 3.7PyPI
Published
Jul 07, 2024
Tracked Since
Feb 18, 2026