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
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
28 Mar 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
FRACTAL · String::Compare::ConstantTimeWant to know if your infrastructure is exposed to this?
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