CVE-2025-15514: Ollama 0.11.5-rc0 through current version 0.13.5 contain a null pointer dereference vulnerability in the multi-modal mod

Ollama versions 0.11.5-rc0 through 0.13.5 have a null pointer dereference vulnerability (a crash caused by the software trying to use a memory address that doesn't exist) in their image processing code. An attacker can send specially crafted fake image data to the /api/chat endpoint (the interface for chat requests), which causes the application to crash and become unavailable until manually restarted, affecting all users.