RHSA-2023:0197 - Security Advisory

Topic

An update for java-11-openjdk is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions.

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.

Description

The java-11-openjdk packages provide the OpenJDK 11 Java Runtime Environment and the OpenJDK 11 Java Software Development Kit.

Security Fix(es):

• OpenJDK: handshake DoS attack against DTLS connections (JSSE, 8287411) (CVE-2023-21835)
• OpenJDK: soundbank URL remote loading (Sound, 8293742) (CVE-2023-21843)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

All running instances of OpenJDK Java must be restarted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux Server - AUS 8.2 x86_64
• Red Hat Enterprise Linux Server - TUS 8.2 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.2 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.2 x86_64

Fixes

• BZ - 2160421 - CVE-2023-21835 OpenJDK: handshake DoS attack against DTLS connections (JSSE, 8287411)
• BZ - 2160475 - CVE-2023-21843 OpenJDK: soundbank URL remote loading (Sound, 8293742)

CVEs

• CVE-2023-21835
• CVE-2023-21843

References

• https://access.redhat.com/security/updates/classification/#moderate