CVE-2019-16910
MediumCVSS 5.3Summary
Wersje Arm Mbed TLS przed 2.19.0 oraz Arm Mbed Crypto przed 2.0.0, przy włączonym deterministycznym ECDSA, wykorzystują generator liczb losowych z niewystarczającą entropią do osłony, co może umożliwić atakującemu odzyskanie klucza prywatnego za pomocą ataków bocznych, jeśli ofiara podpisuje tę samą wiadomość wielokrotnie.
Risk Assessment
Organizacje mogą być narażone na ryzyko utraty kluczy prywatnych, co może prowadzić do kompromitacji danych i systemów. Ataki boczne mogą być szczególnie niebezpieczne w środowiskach, gdzie bezpieczeństwo kluczy jest kluczowe.
Recommendation
Zaleca się aktualizację do wersji Arm Mbed TLS 2.19.0 lub Arm Mbed Crypto 2.0.0, lub do wersji 2.7.12 i 2.16.3 dla Mbed TLS, aby załatać tę podatność.
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Original NVD description (English source)
Arm Mbed TLS before 2.19.0 and Arm Mbed Crypto before 2.0.0, when deterministic ECDSA is enabled, use an RNG with insufficient entropy for blinding, which might allow an attacker to recover a private key via side-channel attacks if a victim signs the same message many times. (For Mbed TLS, the fix is also available in versions 2.7.12 and 2.16.3.)
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

