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AUSCERT External Security Bulletin Redistribution
ESB-2021.0973
Security Bulletin: IBM Cloud Pak for Security vulnerable to
a stack-based buffer overflow (CVE-2020-27221)
19 March 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Cloud Pak
Publisher: IBM
Operating System: Red Hat
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-27221
Reference: ESB-2021.0792
ESB-2021.0683
ESB-2021.0618
Original Bulletin:
https://www.ibm.com/support/pages/node/6433579
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IBM Cloud Pak for Security vulnerable to a stack-based buffer overflow
(CVE-2020-27221)
Document Information
Document number : 6433579
Modified date : 18 March 2021
Product : IBM Cloud Pak for Security
Software version : 1.6.0.0, 1.5.0.1, 1.5.0.0, 1.4.0.0
Operating system(s): RedHat OpenShift
Summary
IBM Cloud Pak for Security v 1.6.0.0 and earlier is vulnerable to a stack-based
buffer overflow when the virtual machine or JNI natives are converting from
UTF-8 characters to platform encoding. This has been addressed in the most
recent release of the product.
Vulnerability Details
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)
Affected Products and Versions
+-----------------------------+----------+
|Affected Product(s) |Version(s)|
+-----------------------------+----------+
|Cloud Pak for Security (CP4S)|1.5.0.0 |
+-----------------------------+----------+
|Cloud Pak for Security (CP4S)|1.4.0.0 |
+-----------------------------+----------+
|Cloud Pak for Security (CP4S)|1.6.0.0 |
+-----------------------------+----------+
|Cloud Pak for Security (CP4S)|1.5.0.1 |
+-----------------------------+----------+
Remediation/Fixes
Upgrade to IBM Cloud Pak for Security v 1.6.0.1 by following the instructions
in https://www.ibm.com/support/knowledgecenter/en/SSTDPP_1.6.0/platform/docs/
security-pak/upgrading_160.html
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Complete CVSS v3 Guide
On-line Calculator v3
Off
Change History
12 Mar 2021: Initial Publication
Document Location
Worldwide
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