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AUSCERT External Security Bulletin Redistribution
ESB-2021.0811
Security Bulletin: IBM WebSphere Application Server Multiple
Vulnerabilities
8 March 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server
Publisher: IBM
Operating System: Linux variants
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-27221 CVE-2020-14803 CVE-2020-14781
CVE-2020-2773
Reference: ESB-2021.0773
ESB-2021.0618
ESB-2020.4389
Original Bulletin:
https://www.ibm.com/support/pages/node/6425553
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Multiple vulnerabilities in IBM Java SDK affects WebSphere Application Server
January 2021 CPU that is bundled with IBM WebSphere Application Server Patterns
Document Information
Document number : 6425553
Modified date : 05 March 2021
Product : WebSphere Application Server Patterns
Component : Not Applicable
Software version : Version Independent
Operating system(s): Linux
AIX
Edition : All Editions
Summary
There are multiple vulnerabilities in the IBM SDK Java Technology Edition that
is shipped with IBM WebSphere Application Server. These issues were disclosed
in the IBM Java SDK updates in January 2021.
Vulnerability Details
CVEID: CVE-2020-14803
DESCRIPTION: An unspecified vulnerability in Java SE could allow an
unauthenticated attacker to obtain sensitive information resulting in a low
confidentiality impact using unknown attack vectors.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
190121 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2020-27221
DESCRIPTION: Eclipse OpenJ9 is vulnerable to a stack-based buffer overflow when
the virtual machine or JNI natives are converting from UTF-8 characters to
platform encoding. By sending an overly long string, a remote attacker could
overflow a buffer and execute arbitrary code on the system or cause the
application to crash.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
195353 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2020-2773
DESCRIPTION: An unspecified vulnerability in Java SE related to the Java SE
Security 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: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
179673 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2020-14781
DESCRIPTION: An unspecified vulnerability in Java SE related to the JNDI
component could allow an unauthenticated attacker to obtain sensitive
information resulting in a low confidentiality impact using unknown attack
vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
190099 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
IBM Java SDK shipped with IBM WebSphere Application Server Patterns 1.0.0.0
through 1.0.0.7 and 2.2.0.0 through 2.3.3.3.
Remediation/Fixes
Please see the IBM Java SDK Security Bulletin for WebSphere Application Server
to determine which WebSphere Application Server versions are affected and to
obtain the JDK fixes. The interim fix 1.0.0.0-WS-WASPATTERNS-JDK-2101 can be
used to apply the January 2021 SDK iFixes in a PureApplication or Cloud Pak
System Environment.
Download and apply the interim fix 1.0.0.0-WS-WASPATTERNS-JDK-2101.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Complete CVSS v3 Guide
On-line Calculator v3
Off
Change History
19 Feb 2021: Initial Publication
Document Location
Worldwide
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