CVE-2024-13939 - CVE House
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Status published Unknown CVE-2024-13939

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

Vulnerability 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

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Robert Rothenberg

References

Affected Vendor

Affected Software

String::Compare::ConstantTime
Vulnerable Versions:
0

Timeline

Official Publish: March 28th, 2025
Last Modified: March 28th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

CWE-208

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.