436400eec3
Discuss the impact in a changelog entry. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
8 lines
549 B
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8 lines
549 B
Text
Security
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* A failure of the random generator was ignored in mbedtls_mpi_fill_random(),
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which is how most uses of randomization in asymmetric cryptography
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(including key generation, intermediate value randomization and blinding)
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are implemented. This could cause failures or the silent use of non-random
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values. A random generator can fail if it needs reseeding and cannot not
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obtain entropy, or due to an internal failure (which, for Mbed TLS's own
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CTR_DRBG or HMAC_DRBG, can only happen due to a misconfiguration).
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