MatrixSSL 4.2.1 and previous versions contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
matrixssl matrixssl |
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