VulnerabilityModified

CVE-2024-3651

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

HIGH 7.5EPSS 1.39%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 1.39% probability · 71th percentile
CISA KEV: Not listed
Weakness: CWE-1333
Affected: kjd/internationalized domain names in applications
Source: security@huntr.dev

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.