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CVE-2021-36647
MEDIUM4.7
Descricao
Use of a Broken or Risky Cryptographic Algorithm in the function mbedtls_mpi_exp_mod() in lignum.c in Mbed TLS Mbed TLS all versions before 3.0.0, 2.27.0 or 2.16.11 allows attackers with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave such as SGX or the TrustZone secure world) to recover the private keys used in RSA.
Detalhes CVE
Pontuacao CVSS v3.14.7
SeveridadeMEDIUM
Vetor CVSSCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Vetor de ataqueLOCAL
ComplexidadeHIGH
Privilegios necessariosLOW
Interacao do usuarioNONE
Publicado1/17/2023
Ultima modificacao11/3/2025
Fontenvd
Avistamentos honeypot0
Produtos afetados
arm:mbed_tls
Fraquezas (CWE)
CWE-327CWE-327
Referencias
https://github.com/ARMmbed/mbedtls/releases/(cve@mitre.org)
https://kouzili.com/Load-Step.pdf(cve@mitre.org)
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-07-1(cve@mitre.org)
https://github.com/ARMmbed/mbedtls/releases/(af854a3a-2127-422b-91ae-364da2661108)
https://kouzili.com/Load-Step.pdf(af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html(af854a3a-2127-422b-91ae-364da2661108)
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-07-1(af854a3a-2127-422b-91ae-364da2661108)
Correlacoes IOC
Sem correlacoes registradas
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