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CVE-2019-14317

CVE-2019-14317

This page contains facts from public vulnerability sources. Check the original advisory before updating.

wolfSSL and wolfCrypt 4.1.0 and earlier (formerly known as CyaSSL) generate biased DSA nonces. This allows a remote attacker to compute the long term private key from several hundred DSA signatures via a lattice attack. The issue occurs because dsa.c fixes two bits of the generated nonces.

CVSS 5.3 · Medium · EPSS 1.8% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • wolfssl Debian:12

    Affected ranges
    • ECOSYSTEM: < 4.2.0+dfsg-1

    Update to 4.2.0+dfsg-1

  • wolfssl Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.2.0+dfsg-1

    Update to 4.2.0+dfsg-1

  • wolfssl Ubuntu:16.04:LTS

    Versions
    • 3.4.8+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • wolfssl Ubuntu:18.04:LTS

    Versions
    • 3.10.2+dfsg-2
    • 3.12.0+dfsg-1
    • 3.12.2+dfsg-1
    • 3.13.0+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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