Security Bulletin
Summary
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.
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) |
| UCD - IBM UrbanCode Deploy | 7.1.1.1 |
| UCD - IBM UrbanCode Deploy | 7.0.5.3 |
| UCD - IBM UrbanCode Deploy | 7.1.1.2 |
| UCD - IBM UrbanCode Deploy | 7.1.1.0 |
| UCD - IBM UrbanCode Deploy | 7.1.0.0 |
| UCD - IBM UrbanCode Deploy | 7.0.5.4 |
| UCD - IBM UrbanCode Deploy | 6.2.7.4 |
| UCD - IBM UrbanCode Deploy | 6.2.7.3 |
| UCD - IBM UrbanCode Deploy | 6.2.7.8 |
| UCD - IBM UrbanCode Deploy | 7.0.4.0 |
| UCD - IBM UrbanCode Deploy | 6.2.7.9 |
| UCD - IBM UrbanCode Deploy | 7.0.3.0 |
| UCD - IBM UrbanCode Deploy | All |
Remediation/Fixes
Upgrade any IBM JRE/JDK to 8.0.6.25 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
None
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References
Change History
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.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
01 September 2021
Initial Publish date:
08 July 2021
UID
ibm16485647