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    1 vulnerability by abetlen

    CVE-2024-34359 (GCVE-0-2024-34359)

    Vulnerability from cvelistv5 – Published: 2024-05-10 17:07 – Updated: 2024-08-02 02:51
    VLAI
    Title
    llama-cpp-python vulnerable to Remote Code Execution by Server-Side Template Injection in Model Metadata
    Summary
    llama-cpp-python is the Python bindings for llama.cpp. `llama-cpp-python` depends on class `Llama` in `llama.py` to load `.gguf` llama.cpp or Latency Machine Learning Models. The `__init__` constructor built in the `Llama` takes several parameters to configure the loading and running of the model. Other than `NUMA, LoRa settings`, `loading tokenizers,` and `hardware settings`, `__init__` also loads the `chat template` from targeted `.gguf` 's Metadata and furtherly parses it to `llama_chat_format.Jinja2ChatFormatter.to_chat_handler()` to construct the `self.chat_handler` for this model. Nevertheless, `Jinja2ChatFormatter` parse the `chat template` within the Metadate with sandbox-less `jinja2.Environment`, which is furthermore rendered in `__call__` to construct the `prompt` of interaction. This allows `jinja2` Server Side Template Injection which leads to remote code execution by a carefully constructed payload.
    Severity
    9.7 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-76 - Improper Neutralization of Equivalent Special Elements
    Assigner
    References
    Impacted products
    Vendor Product Version
    abetlen llama-cpp-python Affected: >= 0.2.30, <= 0.2.71
    		Create a notification for this product.
    abetlen llama-cpp-python Affected: 0.2.30 , ≤ 0.2.71 (custom)
        cpe:2.3:a:abetlen:llama-cpp-python:*:*:*:*:*:*:*:*
    		 Create a notification for this product.
    Show details on NVD website
    To clipboard 

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