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Vulnerability Change Records for CVE-2024-34359

Change History

New CVE Received by NIST 5/14/2024 11:38:45 AM

Action Type Old Value New Value
Added CVSS V3.1

GitHub, Inc. AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Added CWE

GitHub, Inc. CWE-76
Added Description

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.
Added Reference

GitHub, Inc. https://github.com/abetlen/llama-cpp-python/commit/b454f40a9a1787b2b5659cd2cb00819d983185df [No types assigned]
Added Reference

GitHub, Inc. https://github.com/abetlen/llama-cpp-python/security/advisories/GHSA-56xg-wfcc-g829 [No types assigned]