JPCERT-AT-2021-0046
                                                             JPCERT/CC
                                                            2021-10-20

                  <<< JPCERT/CC Alert 2021-10-20 >>>

          Oracle Releases Critical Patch Update, October 2021

        https://www.jpcert.or.jp/english/at/2021/at210046.html


I. Overview
On October 20, 2021 (US Time), Oracle released critical patch updates
for multiple Oracle products.

    Oracle Critical Patch Update Advisory - October 2021
    https://www.oracle.com/security-alerts/cpuoct2021.html

A remote attacker may perform unauthorized operations or unauthorized
deletion or falsification of sensitive information. Users of the
affected products are recommended to update to the latest version
appropriately.


II. Affected Products
Products affected by these vulnerabilities include:

  - Java SE JDK/JRE 17
  - Java SE JDK/JRE 11.0.12
  - Java SE JDK/JRE 8u301
  - Java SE JDK/JRE 7u311
  - Java SE Embedded 8u301
  - Oracle Database Server 21c
  - Oracle Database Server 19c
  - Oracle Database Server 12.2.0.1
  - Oracle Database Server 12.1.0.2
  - Oracle WebLogic Server 14.1.1.0.0
  - Oracle WebLogic Server 12.2.1.4.0
  - Oracle WebLogic Server 12.2.1.3.0
  - Oracle WebLogic Server 12.1.3.0.0
  - Oracle WebLogic Server 10.3.6.0.0

However, since there are many other versions and products affected by
these vulnerabilities, please refer to the information provided by
Oracle for more details.

In addition, there are cases where Java JRE is pre-installed on the PC
or WebLogic is used in software products for servers. Please check if
any of the affected products is included in the PCs or servers that
you use.

    Oracle Corporation
    Oracle Java SE Support Roadmap
    https://www.oracle.com/technetwork/java/eol-135779.html


III. Solution
Oracle has released updates for each product. As for Java SE, the
following versions have been released:

  - Java SE JDK/JRE 17.0.1
  - Java SE JDK/JRE 11.0.12
  - Java SE JDK/JRE 8u311
  - Java SE JDK/JRE 7u321
  - Java SE Embedded 8u311

* As for Oracle Database Server/Oracle WebLogic Server, details of
the updated versions are not available as of October 20. Please check
with Oracle, etc. for the latest information.

Some applications that use affected products may not run properly
after updating the software to the latest version. Please update to
the latest version after considering any possible impacts to
applications that you may use.

    Java Downloads
    https://www.oracle.com/java/technologies/javase-downloads.html

    Free Java Download
    https://java.com/en/download/

Users of 64-bit Windows may have 32-bit and/or 64-bit versions of
JDK/JRE installed. Please check the versions installed on your system
and apply the appropriate updates.

Users can check the version of Java that they are using at the page
below. If both 32-bit and 64-bit versions of Java are installed,
please check the versions installed, using a 32-bit and 64-bit browser
respectively. (In environments where Java is not installed, there may
be a request to install Java. If you do not require Java, please do
not install.)

    Verify Java and Find Out-of-Date Versions
    https://www.java.com/en/download/installed.jsp


IV. References
    Oracle Corporation
    Listing of Java Development Kit 17 Release Notes
    https://www.oracle.com/java/technologies/javase/17u-relnotes.html

    Oracle Corporation
    Listing of Java Development Kit 11 Release Notes
    https://www.oracle.com/java/technologies/javase/11u-relnotes.html

    Oracle Corporation
    Java Development Kit 8 Update Release Notes
    https://www.oracle.com/java/technologies/javase/8u-relnotes.html

    Oracle Corporation
    Java SE 7 Advanced and Java SE 7 Support (formerly known as Java for Business 7) Release Notes
    https://www.oracle.com/java/technologies/javase/7-support-relnotes.html

    Oracle Corporation
    Oracle Java SE Embedded 8 Release Notes
    https://www.oracle.com/java/technologies/javase/embedded8-relnotes.html

    Oracle Corporation
    October 2021 Critical Patch Update Released
    https://blogs.oracle.com/security/post/oct2021-cpu-released

    Oracle Corporation
    Oracle Java SE Support Roadmap
    https://www.oracle.com/technetwork/java/eol-135779.html


If you have any information regarding this alert, please contact
JPCERT/CC.

======================================================================
JPCERT Coordination Center (Early Warning Group)
MAIL: ew-info@jpcert.or.jp
https://www.jpcert.or.jp/english/