2 lines
2.7 KiB
JSON
2 lines
2.7 KiB
JSON
{"affected":[{"affectedData":[{"collectionURL":"https://github.com/supranational/blst","defaultStatus":"unaffected","packageName":"blst","versions":[{"lessThanOrEqual":"0.3.16","status":"affected","version":"0","versionType":"semver"}]}],"source":"patrick@puiterwijk.org"}],"cveTags":[],"descriptions":[{"lang":"en","value":"A flaw was found in the blst cryptographic library. This out-of-bounds stack write vulnerability, specifically in the blst_sha256_bcopy assembly routine, occurs due to a missing zero-length guard. A remote attacker can exploit this by providing a zero-length salt parameter to key generation functions, such as blst_keygen_v5(), if the application exposes this functionality. Successful exploitation leads to memory corruption and immediate process termination, resulting in a denial-of-service (DoS) condition."},{"lang":"es","value":"Se encontró un defecto en la librería criptográfica blst. Esta vulnerabilidad de escritura fuera de límites en la pila, específicamente en la rutina de ensamblador blst_sha256_bcopy, ocurre debido a que falta una guarda de longitud cero. Un atacante en remoto puede explotar esto al proporcionar un parámetro de 'salt' de longitud cero a funciones de generación de claves, como blst_keygen_v5(), si la aplicación expone esta funcionalidad. Si se logra explotar con éxito se provoca una corrupción de memoria y la terminación inmediata del proceso, lo que resulta en una condición de denegación de servicio (DoS)."}],"id":"CVE-2026-2681","lastModified":"2026-06-17T10:31:31.800","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"exploitabilityScore":3.9,"impactScore":1.4,"source":"patrick@puiterwijk.org","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-2681","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-02-19T21:32:20.328139Z","version":"2.0.3"}}]},"published":"2026-02-19T07:17:47.270","references":[{"source":"patrick@puiterwijk.org","url":"https://access.redhat.com/security/cve/CVE-2026-2681"},{"source":"patrick@puiterwijk.org","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2440580"}],"sourceIdentifier":"patrick@puiterwijk.org","vulnStatus":"Deferred","weaknesses":[{"description":[{"lang":"en","value":"CWE-787"}],"source":"patrick@puiterwijk.org","type":"Secondary"}]}
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