CVE-2019-14317

EPSS 0.39%
Published 11.12.2019 18:16:18
Last modified 21.11.2024 04:26:28
Source cve@mitre.org
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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.

Affected products Warnungen 0 Metrics 3 CWE 1 References 4

Data is provided by the National Vulnerability Database (NVD)

Wolfssl ≫ Wolfssl Version < 4.2.0

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	0.39%	0.591

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	5.3	3.9	1.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvd@nist.gov	4.3	8.6	2.9	AV:N/AC:M/Au:N/C:P/I:N/A:N

CWE-331 Insufficient Entropy

The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

https://www.wolfssl.com/docs/security-vulnerabilities/

Patch

Vendor Advisory

https://nvd.nist.gov/vuln/detail/CVE-2019-14317

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2019-14317

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2019-14317

EUVD