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OpenAdvisories
Medium RLSA-2021:5226 1 CVE

Moderate: openssl security update

Published Dec 21, 2021 · Updated Feb 5, 2026

Ecosystem: Rocky Linux

Summary

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 8 openssl 1:1.1.1k-5.el8_5

Vulnerabilities 1

  • High 7.4
    CVE-2021-3712 Public exploit EPSS 48%

    Read buffer overruns processing ASN.1 strings

    ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string dat…

    OpenSSL OpenSSL openssl openssl Debian Ubuntu Azure Linux Alpine crates.io

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1995634