Fire30

**Name of the Vulnerable Software and Affected Versions** SerenityOS versions prior to 2019-12-30 **Description** The issue allows local users to gain privileges by overwriting a return address found on the kernel stack, due to the failure of Kernel/VM/MemoryManager.cpp to reject syscalls with pointers into the kernel-only virtual address space. **Recommendations** For versions prior to 2019-12-30, update to a version released after 2019-12-30 to resolve the issue.