Vulnerability Information
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Vulnerability Title
Ollama Multi-Modal Model Image Processing NULL Pointer Dereference
Vulnerability Description
Ollama 0.11.5-rc0 through current version 0.13.5 contain a null pointer dereference vulnerability in the multi-modal model image processing functionality. When processing base64-encoded image data via the /api/chat endpoint, the application fails to validate that the decoded data represents valid media before passing it to the mtmd_helper_bitmap_init_from_buf function. This function can return NULL for malformed input, but the code does not check this return value before dereferencing the pointer in subsequent operations. A remote attacker can exploit this by sending specially crafted base64 image data that decodes to invalid media, causing a segmentation fault and crashing the runner process. This results in a denial of service condition where the model becomes unavailable to all users until the service is restarted.
CVSS Information
N/A
Vulnerability Type
使用NullPointerException捕捉来检测空指针解引用
Vulnerability Title
Ollama 安全漏洞
Vulnerability Description
Ollama是Ollama开源的一个可以在本地启动并运行的大型语言模型。 Ollama 0.11.5-rc0版本至0.13.5版本存在安全漏洞，该漏洞源于多模态模型图像处理功能存在空指针取消引用，可能导致拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A