CVE-2019-17639 Memory corruption in Eclipse OpenJ9
A memory corruption flaw in Eclipse OpenJ9 allows attackers to execute arbitrary code or escalate privileges via crafted array copy operations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-17639?
CVE-2019-17639 is a medium-severity memory corruption vulnerability in The Eclipse Foundation Eclipse OpenJ9, published on 15 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Eclipse OpenJ9 prior to version 0.21 on Power platforms, calling the System.arraycopy method with a length longer than the length of the source or destination array can, in certain specially crafted code patterns, cause the current method to return prematurely with an undefined return value. This allows whatever value happens to be in the return register at that time to be used as if it matches the method's declared return type.
Weakness: CWE-843
Which versions are affected by CVE-2019-17639?
It affects 1 product.
Products include Eclipse Openj9.
How do I fix CVE-2019-17639?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-17639 being exploited?
There is no known exploitation of CVE-2019-17639 in the wild and no public exploit code.
Other vulnerabilities in The Eclipse Foundation Eclipse OpenJ9
Sources
Also known as GHSA-rm33-h23j-qcgg.