wolfSSL and wolfCrypt 4.0.0 and earlier (when configured without --enable-fpecc, --enable-sp, or --enable-sp-math) contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about the nonces used and potentially mount a lattice attack to recover the private key used. The issue occurs because ecc.c scalar multiplication might leak the bit length.
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References
History
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Status: PUBLISHED
Assigner: mitre
Published: 2019-10-03T13:20:44
Updated: 2024-08-04T23:57:39.493Z
Reserved: 2019-07-17T00:00:00
Link: CVE-2019-13628

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Status : Modified
Published: 2019-10-03T14:15:11.057
Modified: 2024-11-21T04:25:23.910
Link: CVE-2019-13628

No data.