RHSA-2021:0736 - Security Advisory

Topic

An update for java-1.8.0-ibm is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Critical. 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-FP25.

Security Fix(es):

• IBM JDK: Stack-based buffer overflow when converting from UTF-8 characters to platform encoding (CVE-2020-27221)
• OpenJDK: Unexpected exceptions raised by DOMKeyInfoFactory and DOMXMLSignatureFactory (Security, 8231415) (CVE-2020-2773)
• 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: Race condition in NIO Buffer boundary checks (Libraries, 8244136) (CVE-2020-14803)

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 for x86_64 8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.6 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.6 ppc64le

Fixes

• BZ - 1823224 - CVE-2020-2773 OpenJDK: Unexpected exceptions raised by DOMKeyInfoFactory and DOMXMLSignatureFactory (Security, 8231415)
• BZ - 1889274 - CVE-2020-14781 OpenJDK: Credentials sent over unencrypted LDAP connection (JNDI, 8237990)
• BZ - 1889290 - CVE-2020-14782 OpenJDK: Certificate blacklist bypass via alternate certificate encodings (Libraries, 8237995)
• BZ - 1889895 - CVE-2020-14803 OpenJDK: Race condition in NIO Buffer boundary checks (Libraries, 8244136)
• BZ - 1928555 - CVE-2020-27221 IBM JDK: Stack-based buffer overflow when converting from UTF-8 characters to platform encoding

CVEs

• CVE-2020-2773
• CVE-2020-14781
• CVE-2020-14782
• CVE-2020-14803
• CVE-2020-27221

References

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