OllamaGHSA-2xf2-gjm6-g2c6
Ollama Divide by Zero Vulnerability
High7.5CVE-2024-8063 · Published Mar 20, 2025 · updated Sep 10, 2026
A divide by zero vulnerability exists in ollama/ollama version v0.3.3. The vulnerability occurs when importing GGUF models with a crafted type for `block_count` in the Modelfile. This can lead to a denial of service (DoS) condition when the server processes the model, causing it to crash.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| github.com/ollama/ollama Go | <= 0.3.3 | No fix yet |
Details and references
- CVSS 3.0
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-369
- Also known as
- CVE-2024-8063, GO-2025-3689
More Ollama advisories
All Ollama| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| May 162025 | Ollama Server Vulnerable to Denial of Service (DoS) Attack High7.5May 16, 2025 | High7.5 | No fix yet |
| Mar 202025 | Ollama Divide By Zero vulnerabilityHigh7.5Mar 20, 2025 | High7.5 | No fix yet |
| Mar 202025 | Ollama Allocation of Resources Without Limits or Throttling vulnerabilityHigh7.5Mar 20, 2025 | High7.5 | No fix yet |
| Mar 202025 | Ollama Denial of Service (DoS) via Null Pointer DereferenceHigh7.5Mar 20, 2025 | High7.5 | No fix yet |
| Mar 202025 | Ollama Vulnerable to Denial of Service (DoS) via Crafted GZIPHigh7.5Mar 20, 2025 | High7.5 | No fix yet |
| Mar 202025 | Ollama Allows Out-of-Bounds ReadHigh7.5Mar 20, 2025 | High7.5 | No fix yet |