CVE-2025-66960
Description
A flaw was found in ollama. A remote attacker can exploit this vulnerability by providing untrusted GGUF (GGML Unified Format) metadata with a specially crafted string length. This can cause the readGGUFV1String function to improperly process the input, leading to a denial of service, which makes the service unavailable to legitimate users.
Statement
This vulnerability is rated Moderate for Red Hat products. An issue in ollama allows a remote attacker to cause a denial of service by providing untrusted GGUF metadata. This affects Red Hat Ansible Automation Platform versions 2.4, 2.5, and 2.6, as well as Community Projects including Fedora and Red Hat OpenShift AI.
Mitigation
To reduce the risk of exploitation, ensure that the ollama service processes GGUF metadata only from trusted and verified sources. Avoid loading or processing GGUF files from untrusted or unverified origins.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | N/A | 7.5 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Confidentiality,Integrity
Technical Impact: Read Memory; Modify Memory; Varies by Context
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