{"id":"CVE-2024-13939","state":"PUBLISHED","title":"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","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.\n\nAs 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).\"\n\nThis is similar to CVE-2020-36829","publishedAt":"2025-03-28T02:05:01.416Z","updatedAt":"2025-03-28T14:08:55.354Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"CISA-ADP"},"assigner":"CPANSec","products":["FRACTAL String::Compare::ConstantTime"],"affected":[{"vendor":"FRACTAL","product":"String::Compare::ConstantTime","packageName":"String-Compare-ConstantTime","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.321","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","programFiles":["ConstantTime.xs"],"programRoutines":[{"name":"equals()"}],"repo":"https://github.com/hoytech/String-Compare-ConstantTime"}],"references":["https://metacpan.org/release/FRACTAL/String-Compare-ConstantTime-0.321/view/lib/String/Compare/ConstantTime.pm#TIMING-SIDE-CHANNEL"],"weaknesses":["CWE-208"],"ingestedAt":"2026-10-29T20:06:50.777Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/13xxx/CVE-2024-13939.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-13939","state":"PUBLISHED","datePublished":"2025-03-28T02:05:01.416Z","dateUpdated":"2025-03-28T14:08:55.354Z","assignerShortName":"CPANSec","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateReserved":"2025-03-26T14:18:41.024Z"},"containers":{"cna":{"title":"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","descriptions":[{"lang":"en","value":"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.\n\nAs 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).\"\n\nThis is similar to CVE-2020-36829"}],"affected":[{"vendor":"FRACTAL","product":"String::Compare::ConstantTime","packageName":"String-Compare-ConstantTime","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.321","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","programFiles":["ConstantTime.xs"],"programRoutines":[{"name":"equals()"}],"repo":"https://github.com/hoytech/String-Compare-ConstantTime"}],"references":[{"url":"https://metacpan.org/release/FRACTAL/String-Compare-ConstantTime-0.321/view/lib/String/Compare/ConstantTime.pm#TIMING-SIDE-CHANNEL","tags":["related"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-208","description":"CWE-208 Observable Timing Discrepancy","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CPANSec","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateUpdated":"2025-03-28T02:05:01.416Z"},"credits":[{"lang":"en","type":"reporter","value":"Robert Rothenberg"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-03-28T14:08:00.787015Z","id":"CVE-2024-13939","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-03-28T14:08:55.354Z"}}]}}}