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.
History

No history.

cve-icon MITRE

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

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-10-03T14:15:11.057

Modified: 2024-11-21T04:25:23.910

Link: CVE-2019-13628

cve-icon Redhat

No data.