CVE-2021-36647

Use of a Broken or Risky Cryptographic Algorithm in the function mbedtlsmpiexp_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.

Database specific

{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "2.16.11"
                },
                {
                    "introduced": "2.17.0"
                },
                {
                    "fixed": "2.27.0"
                }
            ],
            "source": "CPE_RANGE",
            "vendor_product": "arm:mbed_tls",
            "cpes": [
                "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*"
            ]
        }
    ]
}

References

Affected packages

Git / github.com/mbed-tls/mbedtls

Affected ranges

Type

GIT

Repo

https://github.com/mbed-tls/mbedtls

Events

Introduced

8b3f26a5ac38d4fdccbc5c5366229f3e01dafcc0

Fixed

8df2f8e7b9c7bb9390ac74bb7bace27edca81a2b

Database specific

{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.28.0"
        },
        {
            "fixed": "3.0.0"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36647.json"