CVE-2018-12547 Memory corruption in Eclipse OpenJ9
A buffer overflow in Eclipse OpenJ9 native methods allows attackers to corrupt memory, potentially leading to code execution or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-12547?
CVE-2018-12547 is a critical memory corruption vulnerability in Redhat Enterprise Linux Desktop, published on 11 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Eclipse OpenJ9, prior to the 0.12.0 release, the jio_snprintf() and jio_vsnprintf() native methods ignored the length parameter. This affects existing APIs that called the functions to exceed the allocated buffer. This functions were not directly callable by non-native user code.
Which versions are affected by CVE-2018-12547?
It affects 5 products.
Products include Eclipse Openj9, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation, Redhat Satellite.
How do I fix CVE-2018-12547?
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-2018-12547 being exploited?
There is no known exploitation of CVE-2018-12547 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux Desktop
Sources
Also known as GHSA-5qhh-4q6m-8w7h.