Description (CNA)
In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component fails to perform cross-field validation on attacker-controlled `_size`, `_paddingSize`, and `_dataOffset` fields during `DataDescriptor` message deserialization. An unauthenticated remote attacker can send a crafted network payload that triggers an unsigned integer underflow in `DataDescriptor::getPayloadSize()` and `DataDescriptor::getNextDescriptor()`. This results in an out-of-bounds heap read and an immediate process crash (SIGSEGV), causing a denial of service.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Eclipse Foundation / Eclipse OpenJ9 | affected 0.8.0 before 0.63 |
CWE
CWE-191, CWE-125