RHSA-2020:4306 - Security Advisory

Topic

An update for java-11-openjdk is now available for Red Hat Enterprise Linux 8.1 Extended Update Support.

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: Credentials sent over unencrypted LDAP connection (JNDI, 8237990) (CVE-2020-14781)
• OpenJDK: Certificate blacklist bypass via alternate certificate encodings (Libraries, 8237995) (CVE-2020-14782)
• OpenJDK: Integer overflow leading to out-of-bounds access (Hotspot, 8241114) (CVE-2020-14792)
• OpenJDK: Incomplete check for invalid characters in URI to path conversion (Libraries, 8242685) (CVE-2020-14797)
• OpenJDK: Race condition in NIO Buffer boundary checks (Libraries, 8244136) (CVE-2020-14803)
• OpenJDK: High memory usage during deserialization of Proxy class with many interfaces (Serialization, 8236862) (CVE-2020-14779)
• OpenJDK: Missing permission check in path to URI conversion (Libraries, 8242680) (CVE-2020-14796)

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):

• java-11-openjdk property java.vendor is "N/A" (BZ#1873389)

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 for x86_64 - Extended Update Support 8.1 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.1 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.1 ppc64le
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.1 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1 x86_64

Fixes

• BZ - 1873389 - java-11-openjdk property java.vendor is "N/A" [rhel-8.1.0.z]
• BZ - 1889271 - CVE-2020-14779 OpenJDK: High memory usage during deserialization of Proxy class with many interfaces (Serialization, 8236862)
• BZ - 1889274 - CVE-2020-14781 OpenJDK: Credentials sent over unencrypted LDAP connection (JNDI, 8237990)
• BZ - 1889280 - CVE-2020-14792 OpenJDK: Integer overflow leading to out-of-bounds access (Hotspot, 8241114)
• BZ - 1889290 - CVE-2020-14782 OpenJDK: Certificate blacklist bypass via alternate certificate encodings (Libraries, 8237995)
• BZ - 1889697 - CVE-2020-14796 OpenJDK: Missing permission check in path to URI conversion (Libraries, 8242680)
• BZ - 1889717 - CVE-2020-14797 OpenJDK: Incomplete check for invalid characters in URI to path conversion (Libraries, 8242685)
• BZ - 1889895 - CVE-2020-14803 OpenJDK: Race condition in NIO Buffer boundary checks (Libraries, 8244136)

CVEs

• CVE-2020-14779
• CVE-2020-14781
• CVE-2020-14782
• CVE-2020-14792
• CVE-2020-14796
• CVE-2020-14797
• CVE-2020-14803

References

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