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

CVE-2023-31147

Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-330 Uso de valores insuficientemente aleatorios
Fecha de publicación:
25/05/2023
Última modificación:
31/10/2023

Descripción

*** Pendiente de traducción *** c-ares is an asynchronous resolver library. When /dev/urandom or RtlGenRandom() are unavailable, c-ares uses rand() to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand() so will generate predictable output. Input from the random number generator is fed into a non-compilant RC4 implementation and may not be as strong as the original RC4 implementation. No attempt is made to look for modern OS-provided CSPRNGs like arc4random() that is widely available. This issue has been fixed in version 1.19.1.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:c-ares_project:c-ares:*:*:*:*:*:*:*:* 1.19.1 (excluyendo)
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*