CVE-2021-4044

openssl: invalid handling of X509_verify_cert() internal errors in libssl

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · December 14, 2021

Updated · August 5, 2026

Description

A flaw was found in the way OpenSSL verified certificates via the X509_verify_cert() function. An internal error was not correctly validated causing application crashes or invalid application behavior.

Statement

This issue does not affect the versions of OpenSSL shipped with Red Hat products. OpenSSL 3.0.0 SSL/TLS clients are affected by this issue.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-252 · Unchecked Return Value