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RHSA-2021:4424: Red Hat Security Advisory: openssl security and bug fix update
An update for openssl is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.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: integer overflow in CipherUpdate (CVE-2021-23840)
- openssl: NULL pointer dereference in X509_issuer_and_serial_hash() (CVE-2021-23841) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section. Related CVEs:
- CVE-2021-23840: openssl: integer overflow in CipherUpdate
- CVE-2021-23841: openssl: NULL pointer dereference in X509_issuer_and_serial_hash()
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