cve/2024/CVE-2024-39720.md

CVE-2024-39720

Description

An issue was discovered in Ollama before 0.1.46. An attacker can use two HTTP requests to upload a malformed GGUF file containing just 4 bytes starting with the GGUF custom magic header. By leveraging a custom Modelfile that includes a FROM statement pointing to the attacker-controlled blob file, the attacker can crash the application through the CreateModel route, leading to a segmentation fault (signal SIGSEGV: segmentation violation).

POC

Reference

• https://oligo.security/blog/more-models-more-probllms

Github

• https://github.com/datawhalechina/handy-ollama
• https://github.com/wowtalon/LLM-Security