RHSA-2021:5226: Moderate: openssl security update

Published Dec 21, 2021
·
Updated

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.Security Fix(es): openssl: Read buffer overruns processing ASN.1 strings (CVE-2021-3712) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

28 affected componentsFixes available
redhat/openssl<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-debuginfo<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-debuginfo<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-debugsource<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-debugsource<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-devel<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-devel<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-libs<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-libs<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-libs-debuginfo<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-libs-debuginfo<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-perl<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-perl<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-debuginfo<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-debugsource<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-devel<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-libs<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-libs-debuginfo<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl-perl<1.1.1k-5.el8_5
1.1.1k-5.el8_5
redhat/openssl<1.1.1k-5.el8_5.aa
1.1.1k-5.el8_5.aa
redhat/openssl-debuginfo<1.1.1k-5.el8_5.aa
1.1.1k-5.el8_5.aa
redhat/openssl-debugsource<1.1.1k-5.el8_5.aa
1.1.1k-5.el8_5.aa
redhat/openssl-devel<1.1.1k-5.el8_5.aa
1.1.1k-5.el8_5.aa
redhat/openssl-libs<1.1.1k-5.el8_5.aa
1.1.1k-5.el8_5.aa
redhat/openssl-libs-debuginfo<1.1.1k-5.el8_5.aa
1.1.1k-5.el8_5.aa
redhat/openssl-perl<1.1.1k-5.el8_5.aa
1.1.1k-5.el8_5.aa

Remediation

Event History

May 23, 2026
Advisory Published
via Red Hat·06:36 PM
Data Sourced
via Red Hat·06:36 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2021:5226?

RHSA-2021:5226 is classified as a critical security vulnerability due to buffer overrun issues in OpenSSL.

2

How do I fix RHSA-2021:5226?

To remediate RHSA-2021:5226, update OpenSSL to version 1.1.1k-5.el8_5 or later.

3

Which OpenSSL versions are affected by RHSA-2021:5226?

RHSA-2021:5226 affects OpenSSL versions prior to 1.1.1k-5.el8_5.

4

What is CVE-2021-3712 related to RHSA-2021:5226?

CVE-2021-3712 is a specific vulnerability that involves read buffer overruns when processing ASN.1 strings in OpenSSL.

5

Is it safe to use OpenSSL after applying the patch for RHSA-2021:5226?

Yes, after applying the patch for RHSA-2021:5226, OpenSSL is considered safe if no further vulnerabilities are present.

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