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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.4050
 Security Bulletin: Multiple Vulnerabilities in IBM® Java SDK affect
               WebSphere Application Server October 2021 CPU
                              1 December 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           WebSphere Application Server
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   IBM i
                   Linux variants
                   Solaris
                   Windows
                   z/OS
                   macOS
Impact/Access:     Modify Arbitrary Files -- Remote/Unauthenticated
                   Denial of Service      -- Remote/Unauthenticated
                   Unauthorised Access    -- Remote/Unauthenticated
                   Reduced Security       -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-35578 CVE-2021-35564 

Reference:         ESB-2021.3926
                   ESB-2021.3636
                   ESB-2021.3494

Original Bulletin: 
   https://www.ibm.com/support/pages/node/6520468

- --------------------------BEGIN INCLUDED TEXT--------------------

Multiple Vulnerabilities in IBM® Java SDK affect WebSphere Application Server
October 2021 CPU

Document Information

Document number    : 6520468
Modified date      : 30 November 2021
Product            : WebSphere Application Server
Component          : Liberty
Software version   : 9.0, 8.5, Liberty
Operating system(s): AIX
                     HP-UX
                     IBM i
                     Linux
                     Solaris
                     Windows
                     z/OS
                     Mac OS
Edition            : Advanced,Base,Developer,Enterprise,Express,Network Deployment,Single Server, Liberty

Summary

There are multiple vulnerabilities in the IBM SDK, Java Technology Edition that
is shipped with IBM WebSphere Application Server. These might affect some
configurations of IBM WebSphere Application Server Traditional, IBM WebSphere
Application Server Liberty and IBM WebSphere Application Server Hypervisor
Edition. These products have addressed the applicable CVEs. If you run your own
Java code using the IBM Java Runtime delivered with this product, you should
evaluate your code to determine whether the complete list of vulnerabilities is
applicable to your code. For a complete list of vulnerabilities, refer to the
link for "IBM Java SDK Security Bulletin" located in the References section for
more information. HP fixes are on a delayed schedule.

Vulnerability Details

CVEID: CVE-2021-35578
DESCRIPTION: An unspecified vulnerability in Java SE related to the JSSE
component could allow an unauthenticated attacker to cause a denial of service
resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
211654 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2021-35564
DESCRIPTION: An unspecified vulnerability in Java SE related to the Keytool
component could allow an unauthenticated attacker to cause no confidentiality
impact, low integrity impact, and no availability impact.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
211640 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

+------------------------------------+-------------------+
|Affected Product(s)                 |Version(s)         |
+------------------------------------+-------------------+
|WebSphere Application Server Liberty|Continuous delivery|
+------------------------------------+-------------------+
|WebSphere Application Server        |9.0                |
+------------------------------------+-------------------+
|WebSphere Application Server        |8.5                |
+------------------------------------+-------------------+

Remediation/Fixes

For WebSphere Application Server Liberty:

Upgrade to IBM SDK, Java Technology Edition Version 8 SR7 refer to IBM Java
SDKs for Liberty

For Version 9 WebSphere Application Server Traditional:

Update to the IBM SDK, Java Technology Edition, Version 8 Service Refresh 7
using the instructions in the IBM Knowledge Center Installing and updating IBM
SDK, Java Technology Edition on distributed environments then use the IBM
Installation Manager to access the online product repositories to install the
SDK or use IBM Installation Manager and access the packages from Fixcentral .

For V8.5.0.0 through 8.5.5.20 WebSphere Application Server Traditional and
WebSphere Application Server Hypervisor Edition:

For the IBM SDK, Java Technology Version that you use, upgrade to the minimal
fix pack level of WebSphere Application Server as noted in the interim fix
below then apply the interim fixes:

For IBM SDK Java Technology Edition Version 7

  o Apply interim fix PH41740 : Will upgrade you to IBM SDK, Java Technology
    Edition, Version 7 Service Refresh 11.

For IBM SDK Java Technology Edition Version 7R1

  o Apply interim fix PH41738 : Will upgrade you to IBM SDK, Java Technology
    Edition, Version 7R1 Service Refresh 5.

For IBM SDK Java Technology Edition Version 8 SR7

  o For environments that have been upgraded to use the new default IBM SDK
    Version 8 bundled with WebSphere Application Server Fix Pack 8.5.5.11 or
    later: Apply interim fix PH41736 : Will upgrade you to IBM SDK, Java
    Technology Edition, Version 8 Service Refresh 7.

OR

  o Apply IBM Java SDK shipped with WebSphere Application Server Fix pack 21
    (8.5.5.21) or later (targeted availability 1Q 2022).

For Application Client for WebSphere Application Server:

Follow instructions above for the WebSphere Application Server to download the
interim fix needed for your version of the Application Client.

Workarounds and Mitigations

None

IBM Java SDK Security Bulletin (to be added when available)

Change History

30 Nov 2021: Initial Publication

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