En bref
- CVE-2019-13628 est une vulnérabilité MOYENNE (CVSS 4.7) touchant wolfcrypt, wolfssl (wolfssl).
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 0.38%, plus élevée que 32.0% des vulnérabilités.
- Correctif : mettre à jour vers 4.1.0 ou plus récent.
| Package | Affected versions | Patched versions |
|---|
| wolfcrypt PyPI | < 4.1.0
| 4.1.0
|
| wolfssl | ≤ 4.0.0
| No fix yet |
Description
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.
NVD description
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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