Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2023-1732

Gravedad CVSS v3.1:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
10/05/2023
Última modificación:
17/05/2023

Descripción

*** Pendiente de traducción *** When sampling randomness for a shared secret, the implementation of Kyber and FrodoKEM, did not check whether crypto/rand.Read() returns an error. In rare deployment cases (error thrown by the Read() function), this could lead to a predictable shared secret.<br /> <br /> The tkn20 and blindrsa components did not check whether enough randomness was returned from the user provided randomness source. Typically the user provides crypto/rand.Reader, which in the vast majority of cases will always return the right number random bytes. In the cases where it does not, or the user provides a source that does not, the blinding for blindrsa is weak and integrity of the plaintext is not ensured in tkn20.<br /> <br />

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:cloudflare:circl:*:*:*:*:*:go:*:* 1.3.3 (excluyendo)


Referencias a soluciones, herramientas e información