RHSA-2020:0470 - Security Advisory

Topic

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

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

IBM Java SE version 8 includes the IBM Java Runtime Environment and the IBM Java Software Development Kit.

This update upgrades IBM Java SE 8 to version 8 SR6-FP5.

Security Fix(es):

• OpenJDK: Serialization filter changes via jdk.serialFilter property modification (Serialization, 8231422) (CVE-2020-2604)
• OpenJDK: Incorrect isBuiltinStreamHandler check causing URL normalization issues (Networking, 8228548) (CVE-2020-2593)
• OpenJDK: Incorrect exception processing during deserialization in BeanContextSupport (Serialization, 8224909) (CVE-2020-2583)
• OpenJDK: Incomplete enforcement of maxDatagramSockets limit in DatagramChannelImpl (Networking, 8231795) (CVE-2020-2659)

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 IBM Java must be restarted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux Server 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

Fixes

• BZ - 1790444 - CVE-2020-2583 OpenJDK: Incorrect exception processing during deserialization in BeanContextSupport (Serialization, 8224909)
• BZ - 1790884 - CVE-2020-2593 OpenJDK: Incorrect isBuiltinStreamHandler check causing URL normalization issues (Networking, 8228548)
• BZ - 1790944 - CVE-2020-2604 OpenJDK: Serialization filter changes via jdk.serialFilter property modification (Serialization, 8231422)
• BZ - 1791284 - CVE-2020-2659 OpenJDK: Incomplete enforcement of maxDatagramSockets limit in DatagramChannelImpl (Networking, 8231795)

CVEs

• CVE-2020-2583
• CVE-2020-2593
• CVE-2020-2604
• CVE-2020-2659

References

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