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CVE-2019-14317

Published: 11 December 2019

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.

Priority

Medium

CVSS 3 base score: 5.3

Status

Package Release Status
wolfssl
Launchpad, Ubuntu, Debian
bionic Needs triage

disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Not vulnerable
(4.2.0+dfsg-3)
groovy Not vulnerable
(4.2.0+dfsg-3)
hirsute Not vulnerable
(4.2.0+dfsg-3)
impish Not vulnerable
(4.2.0+dfsg-3)
jammy Not vulnerable
(4.2.0+dfsg-3)
precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Ignored
(end of standard support, was needs-triage)