{"id":"JLSEC-2025-221","summary":"Use of a Broken or Risky Cryptographic Algorithm in the function mbedtls_mpi_exp_mod() in lignum.c i...","details":"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.","modified":"2025-11-21T16:17:57.966431Z","published":"2025-11-21T15:59:04.054Z","upstream":["CVE-2021-36647"],"database_specific":{"sources":[{"id":"CVE-2021-36647","imported":"2025-11-20T23:04:02.205Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36647","published":"2023-01-17T21:15:10.880Z","modified":"2025-11-03T20:15:49.343Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-36647"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/ARMmbed/mbedtls/releases/"},{"type":"WEB","url":"https://kouzili.com/Load-Step.pdf"},{"type":"WEB","url":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2021-07-1"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html"}],"affected":[{"package":{"name":"MbedTLS_jll","ecosystem":"Julia","purl":"pkg:julia/MbedTLS_jll?uuid=c8ffd9c3-330d-5841-b78e-0817d7145fa1"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.27.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-221.json"}}],"schema_version":"1.7.3"}