Improper Verification of Cryptographic Signature Affecting wolfssl package, versions <4.3.0+dfsg-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.94% (60th percentile)

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  • Snyk IDSNYK-ECHOLATEST-WOLFSSL-17979233
  • published15 Jul 2026
  • disclosed25 Dec 2019

Introduced: 25 Dec 2019

CVE-2019-19962  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade Echo:latest wolfssl to version 4.3.0+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wolfssl package and not the wolfssl package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

wolfSSL before 4.3.0 mishandles calls to wc_SignatureGenerateHash, leading to fault injection in RSA cryptography.

CVSS Base Scores

version 3.1