CVE-2024-13939

High

Description

String::Compare::ConstantTime for Perl through 0.321 is vulnerable to timing attacks that allow an attacker to guess the length of a secret string. As stated in the documentation: "If the lengths of the strings are different, because equals returns false right away the size of the secret string may be leaked (but not its contents)." This is similar to CVE-2020-36829

SeverityHigh
CVSS7.5
Exploit probability—
ProductFractal String\
PublishedMar 28, 2025
First seenMar 28, 2025
Weakness typeCWE-208CWE-208

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
fractal string\\ ≤ v ≤ 0.321—

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