RHSA-2020:2968 - 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.

[Updated 3 September 2020]
This OpenJDK update was found to introduce a regression in ForkJoinPool. This is not a security regression. Please see https://bugzilla.redhat.com/show_bug.cgi?id=1860456 for further details.

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: Bypass of boundary checks in nio.Buffer via concurrent access (Libraries, 8238920) (CVE-2020-14583)
• OpenJDK: Incomplete bounds checks in Affine Transformations (2D, 8240119) (CVE-2020-14593)
• OpenJDK: Incorrect handling of access control context in ForkJoinPool (Libraries, 8237117) (CVE-2020-14556)
• OpenJDK: Unexpected exception raised by DerInputStream (Libraries, 8237731) (CVE-2020-14578)
• OpenJDK: Unexpected exception raised by DerValue.equals() (Libraries, 8237736) (CVE-2020-14579)
• OpenJDK: XML validation manipulation due to incomplete application of the use-grammar-pool-only feature (JAXP, 8242136) (CVE-2020-14621)
• OpenJDK: HostnameChecker does not ensure X.509 certificate names are in normalized form (JSSE, 8237592) (CVE-2020-14577)

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 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 - 1856448 - CVE-2020-14583 OpenJDK: Bypass of boundary checks in nio.Buffer via concurrent access (Libraries, 8238920)
• BZ - 1856784 - CVE-2020-14593 OpenJDK: Incomplete bounds checks in Affine Transformations (2D, 8240119)
• BZ - 1856885 - CVE-2020-14621 OpenJDK: XML validation manipulation due to incomplete application of the use-grammar-pool-only feature (JAXP, 8242136)
• BZ - 1856896 - CVE-2020-14556 OpenJDK: Incorrect handling of access control context in ForkJoinPool (Libraries, 8237117)
• BZ - 1856988 - CVE-2020-14577 OpenJDK: HostnameChecker does not ensure X.509 certificate names are in normalized form (JSSE, 8237592)
• BZ - 1856991 - CVE-2020-14578 OpenJDK: Unexpected exception raised by DerInputStream (Libraries, 8237731)
• BZ - 1856995 - CVE-2020-14579 OpenJDK: Unexpected exception raised by DerValue.equals() (Libraries, 8237736)

CVEs

• CVE-2020-14556
• CVE-2020-14577
• CVE-2020-14578
• CVE-2020-14579
• CVE-2020-14583
• CVE-2020-14593
• CVE-2020-14621

References

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