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VULNERABILITIES

CVE-2021-44718 Details

Description

wolfSSL through 5.0.0 allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/wolfSSL/wolfssl/releases CVERelease NotesThird Party Advisory
https://www.wolfssl.com/docs/security-vulnerabilities/ CVEVendor Advisory
https://github.com/wolfSSL/wolfssl/releases [email protected]Release NotesThird Party Advisory
https://www.wolfssl.com/docs/security-vulnerabilities/ [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')[email protected]

Affected Products

ProductVersions
wolfssl wolfssl
<= 5.0.0

CPE

  • cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-44718
NVD Published Date:
Sep 2, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-44718 Details - Not Deferred