Non évaluée
An issue was discovered in Mbed TLS 3.5.x and 3.6.x through 3.6.5 and TF-PSA-Crypto 1.0. There is a lack of contributory behavior in FFDH due to impro...
CVE-2026-34872
Première détection SecPulse
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Debian DEBIAN-CVE-2026-34872 mbedtls
- Ubuntu UBUNTU-CVE-2026-34872 mbedtls
Description d'origine La description telle que publiée par la source (souvent en anglais).
An issue was discovered in Mbed TLS 3.5.x and 3.6.x through 3.6.5 and TF-PSA-Crypto 1.0. There is a lack of contributory behavior in FFDH due to improper input validation. Using finite-field Diffie-Hellman, the other party can force the shared secret into a small set of values (lack of contributory behavior). This is a problem for protocols that depend on contributory behavior (which is not the case for TLS). The attack can be carried by the peer, or depending on the protocol by an active network attacker (person in the middle).
Références
- advisory github.com
- advisory mbed-tls.readthedocs.io
- advisory mbed-tls.readthedocs.io
- advisory nvd.nist.gov