CVE-2023-37464: fallo de gravedad alta en OpenIDC cjose
Incorrect Authentication Tag length usage in AES GCM decryption in OpenIDC/cjose
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.6epss 0.7%
OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE. The spec says that a fixed length of 16 octets must be applied. Therefore this bug allows an attacker to provide a truncated Authentication Tag and to modify the JWE accordingly. Users should upgrade to a version >= 0.6.2.2. Users unable to upgrade should avoid using AES GCM encryption and replace it with another encryption algorithm (e.g. AES CBC).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Productos afectados
OpenIDC · cjoseCVEs relacionadas — OpenIDC cjose
En el mismo producto, de las más peligrosas a las menos.
Referencias
https://datatracker.ietf.org/doc/html/rfc7518#section-4.7https://github.com/OpenIDC/cjose/commit/7325e9a5e71e2fc0e350487ecac7d84acdf0ed5ehttps://github.com/OpenIDC/cjose/releases/tag/v0.6.2.2https://github.com/OpenIDC/cjose/security/advisories/GHSA-3rhg-3gf2-6xgjhttps://lists.debian.org/debian-lts-announce/2023/08/msg00002.htmlhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFWAPMYYVBO2U65HPYDTBEKNSXG4TP5C/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LCQJXKDPCWCXB2V4JMQ3UWYJ4UIBPUW6/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PTZHOVGY7AHGNMEY245HK4Q36AMA53AL/https://www.debian.org/security/2023/dsa-5472