Java SE issues disclosed in CVE-2020-27221 for IBM provided JRE. 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.
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
|UCD - IBM UrbanCode Deploy||184.108.40.206|
|UCD - IBM UrbanCode Deploy||220.127.116.11|
|UCD - IBM UrbanCode Deploy||18.104.22.168|
|UCD - IBM UrbanCode Deploy||22.214.171.124|
|UCD - IBM UrbanCode Deploy||126.96.36.199|
|UCD - IBM UrbanCode Deploy||188.8.131.52|
|UCD - IBM UrbanCode Deploy||184.108.40.206|
|UCD - IBM UrbanCode Deploy||220.127.116.11|
|UCD - IBM UrbanCode Deploy||18.104.22.168|
|UCD - IBM UrbanCode Deploy||22.214.171.124|
|UCD - IBM UrbanCode Deploy||126.96.36.199|
|UCD - IBM UrbanCode Deploy||188.8.131.52|
|UCD - IBM UrbanCode Deploy||All|
Upgrade any IBM JRE/JDK to 184.108.40.206 or later
An updated JRE/JDK installer may be available in Passport Advantage as a downloadable entitlement with the latest UrbanCode Deploy 7.2.0. You do NOT need to upgrade the UrbanCode Deploy server when updating the JDK.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
08 Jul 2021: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
01 September 2021