{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T20:28:48.139","vulnerabilities":[{"cve":{"id":"CVE-2025-37984","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-05-20T18:15:45.253","lastModified":"2025-11-14T17:00:02.113","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ecdsa - Harden against integer overflows in DIV_ROUND_UP()\n\nHerbert notes that DIV_ROUND_UP() may overflow unnecessarily if an ecdsa\nimplementation's ->key_size() callback returns an unusually large value.\nHerbert instead suggests (for a division by 8):\n\n  X / 8 + !!(X & 7)\n\nBased on this formula, introduce a generic DIV_ROUND_UP_POW2() macro and\nuse it in lieu of DIV_ROUND_UP() for ->key_size() return values.\n\nAdditionally, use the macro in ecc_digits_from_bytes(), whose \"nbytes\"\nparameter is a ->key_size() return value in some instances, or a\nuser-specified ASN.1 length in the case of ecdsa_get_signature_rs()."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: ecdsa - Protección contra desbordamientos de enteros en DIV_ROUND_UP(). Herbert señala que DIV_ROUND_UP() puede desbordarse innecesariamente si la función de retorno ->key_size() de una implementación de ecdsa devuelve un valor inusualmente grande. En su lugar, Herbert sugiere (para una división entre 8): X / 8 + !!(X y 7). Con base en esta fórmula, introduzca una macro genérica DIV_ROUND_UP_POW2() y úsela en lugar de DIV_ROUND_UP() para los valores de retorno de ->key_size(). Además, utilice la macro en ecc_digits_from_bytes(), cuyo parámetro \"nbytes\" es un valor de retorno de ->key_size() en algunos casos, o una longitud ASN.1 especificada por el usuario en el caso de ecdsa_get_signature_rs()."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-190"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.70","versionEndExcluding":"6.6.99","matchCriteriaId":"7CCA2E29-450F-44AE-B634-FCC3BAF6D1F3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.39","matchCriteriaId":"5E0A7E52-CDBF-45E4-8338-F679910D5C1B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.14.5","matchCriteriaId":"6B25CA7E-4CD0-46DB-B4EF-13A3516071FB"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/921b8167f10708e38080f84e195cdc68a7a561f1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b16510a530d1e6ab9683f04f8fb34f2e0f538275","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f02f0218be412cff1c844addf58e002071be298b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f2133b849ff273abddb6da622daddd8f6f6fa448","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}