User Enumeration Affecting wolfssl package, versions [,4.6.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.38% (59th percentile)

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  • Snyk IDSNYK-CONAN-WOLFSSL-10078494
  • published8 May 2025
  • disclosed14 Jul 2021
  • creditUnknown

Introduced: 14 Jul 2021

CVE-2021-24116  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade wolfssl to version 4.6.0 or higher.

Overview

Affected versions of this package are vulnerable to User Enumeration. In wolfSSL through 4.6.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.

CVSS Base Scores

version 3.1