MatrixSSL 4.2.1 and earlier 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.
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T23:57:39.514Z
Reserved: 2019-07-17T00:00:00
Link: CVE-2019-13629

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Status : Modified
Published: 2019-10-03T14:15:11.150
Modified: 2024-11-21T04:25:24.060
Link: CVE-2019-13629

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