CVE-2019-11775: High severity eclipse openj9 vulnerability
All builds of Eclipse OpenJ9 prior to 0.15 contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop by versioning - for example if there is a condition that is moved out of the loop that reads a field we may not privatize the value of that field in the modified copy of the loop allowing the test to see one value of the field and subsequently the loop to see a modified field value without retesting the condition moved out of the loop. This can lead to a variety of different issues but read out of array bounds is one major consequence of these problems.
Other sources
IBM JDK 7 SR10 FP50 (7.0.10.50), 7.1 SR4 FP50 (7.1.4.50), and 8 SR5 FP40 (8.0.5.40) fix a flaw described by upstream as:
Eclipse OpenJ9 could allow a local attacker to gain elevated privileges on the system, caused by an error where the loop versioner fails to privatize a value that is pulled out of the loop by versioning. An attacker could exploit this vulnerability to corrupt memory and trigger an out-of-array-bounds and perform invalid actions.
OpenJ9 upstream bug:
https://bugs.eclipse.org/bugs/showbug.cgi?id=549601
Eclipse OMR upstream bug and merge request:
https://bugs.eclipse.org/bugs/showbug.cgi?id=549192 https://github.com/eclipse/omr/pull/4138
References:
https://www-01.ibm.com/support/docview.wss?uid=ibm10960422 https://developer.ibm.com/javasdk/support/security-vulnerabilities/#IBMSecurityUpdateJuly2019
— Red Hat
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2019-11775.
What is the severity of CVE-2019-11775?
The severity of CVE-2019-11775 is high.
What is the affected software for CVE-2019-11775?
The affected software for CVE-2019-11775 is Eclipse OpenJ9 prior to 0.15, Redhat Satellite 5.8, Redhat Enterprise Linux Desktop 6.0 and 7.0, Redhat Enterprise Linux Server 6.0 and 7.0, and Redhat Enterprise Linux Workstation 6.0 and 7.0.
How can I fix CVE-2019-11775?
To fix CVE-2019-11775, update Eclipse OpenJ9 to version 0.15 or later.
Is there any additional information available for CVE-2019-11775?
Yes, you can find additional information for CVE-2019-11775 at the following references: [Reference 1](https://bugs.eclipse.org/bugs/show_bug.cgi?id=549601), [Reference 2](https://bugs.eclipse.org/bugs/show_bug.cgi?id=549192), [Reference 3](https://github.com/eclipse/omr/pull/4138).