RHSA-2023:1904 - Security Advisory

Topic

An update for java-1.8.0-openjdk is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. 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-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit.

Security Fix(es):

• OpenJDK: improper connection handling during TLS handshake (8294474) (CVE-2023-21930)
• OpenJDK: Swing HTML parsing issue (8296832) (CVE-2023-21939)
• OpenJDK: incorrect enqueue of references in garbage collector (8298191) (CVE-2023-21954)
• OpenJDK: certificate validation issue in TLS session negotiation (8298310) (CVE-2023-21967)
• OpenJDK: missing string checks for NULL characters (8296622) (CVE-2023-21937)
• OpenJDK: incorrect handling of NULL characters in ProcessBuilder (8295304) (CVE-2023-21938)
• OpenJDK: missing check for slash characters in URI-to-path conversion (8298667) (CVE-2023-21968)

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.

Bug Fix(es):

• Native code within the OpenJDK code base attempted to call close() on a file descriptor repeatedly if it returned the error code, EINTR. However, the close() native call is not restartable and this caused the virtual machine to crash. The close() call is now only made once. (RHBZ#2159458)

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 7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 2159458 - Do not restart close if errno is EINTR [rhel-7.9.z]
• BZ - 2187435 - CVE-2023-21930 OpenJDK: improper connection handling during TLS handshake (8294474)
• BZ - 2187441 - CVE-2023-21954 OpenJDK: incorrect enqueue of references in garbage collector (8298191)
• BZ - 2187704 - CVE-2023-21967 OpenJDK: certificate validation issue in TLS session negotiation (8298310)
• BZ - 2187724 - CVE-2023-21939 OpenJDK: Swing HTML parsing issue (8296832)
• BZ - 2187758 - CVE-2023-21938 OpenJDK: incorrect handling of NULL characters in ProcessBuilder (8295304)
• BZ - 2187790 - CVE-2023-21937 OpenJDK: missing string checks for NULL characters (8296622)
• BZ - 2187802 - CVE-2023-21968 OpenJDK: missing check for slash characters in URI-to-path conversion (8298667)

CVEs

• CVE-2023-21930
• CVE-2023-21937
• CVE-2023-21938
• CVE-2023-21939
• CVE-2023-21954
• CVE-2023-21967
• CVE-2023-21968

References

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