mbedtls: Use of a Broken or Risky Cryptographic Algorithm in the function mbedtls_mpi_exp_mod() in lignum.c in Mbed TLS Mbed T...
CVE-2021-36647 is fixed in mbedtls on 1 platform, first by DEBIAN-CVE-2021-36647, released January 17, 2023. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| mbedtls · Debian 12.15 (bookworm) | 2.16.11-0.1 | DEBIAN-CVE-2021-36647 | Jan 17, 2023 |
| mbedtls · Debian 13.5 (trixie) | 2.16.11-0.1 | DEBIAN-CVE-2021-36647 | Jan 17, 2023 |
| mbedtls · Debian 14 | 2.16.11-0.1 | DEBIAN-CVE-2021-36647 | Jan 17, 2023 |
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