CVE-2019-14317 — Insufficient Entropy in Wolfssl

CWE-331 — Insufficient EntropyCWE-311 — Missing Encryption of Sensitive DataCWE-364 — Signal Handler Race Condition6 documents6 sources
Severity
5.3MEDIUMNVD
EPSS
0.4%
top 39.77%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
WolfsslDebian Wolfssl
Timeline
PublishedDec 11
Latest updateMay 24

Description

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages3 packages

▶debiandebian/wolfssl< wolfssl 4.2.0+dfsg-1 (bookworm)
▶NVDwolfssl/wolfssl< 4.2.0
▶Debianwolfssl/wolfssl< 4.2.0+dfsg-1+3

Patches

Patch: www.wolfssl.com ↗Patch: www.wolfssl.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-3w65-mh9h-3g82: wolfSSL and wolfCrypt 4↗2022-05-24
▶
OSV
CVE-2019-14317: wolfSSL and wolfCrypt 4↗2019-12-11
▶

📋Vendor Advisories

2
Red Hat
wildfly: JBoss EAP-CD regression of CVE-2019-3805↗2020-07-07
▶
Debian
CVE-2019-14317: wolfssl - wolfSSL and wolfCrypt 4.1.0 and earlier (formerly known as CyaSSL) generate bias...↗2019
▶

💬Community

1
Bugzilla
CVE-2020-14317 wildfly: JBoss EAP-CD regression of CVE-2019-3805↗2020-07-07
▶
CVE-2019-14317 — Insufficient Entropy in Wolfssl | cvebase