CVE-2024-39720: ollama Out-of-bounds Read

Vulnerability summary

CVE-2024-39720 is a high (CVSS 8.2) Out-of-bounds Read vulnerability in ollama. EPSS estimates a 2.44% chance of exploitation in the next 30 days, higher than 84.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 31-10-2024
   PublishedVulnerability first disclosed.
2. 01-11-2024
   Last modifiedVulnerability information updated.

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).

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.