llama.cpp b2877 before b11935 contains an uncaught exception vulnerability in the ggml-rpc server…

Why it is Yellow

• CVSS 7.5 high
• Remotely exploitable without logging in

References

• https://github.com/ggml-org/llama.cpp
• https://github.com/ggml-org/llama.cpp/blob/8542e94350f0ade01644db6f1d1520da3814dafd/ggml/src/ggml-rpc/ggml-rpc.cpp#L344-L356
• https://github.com/ggml-org/llama.cpp/commit/7ecb57f7adbea2928aa468ad2aecf05b10725ad4
• https://github.com/ggml-org/llama.cpp/pull/31204
• https://github.com/ggml-org/llama.cpp/releases/tag/b11935
• https://www.vulncheck.com/advisories/llama-cpp-b2877-before-b11935-ggml-rpc-server-dos-via-oversized-recv-msg-length

Original description

llama.cpp b2877 before b11935 contains an uncaught exception vulnerability in the ggml-rpc server that allows unauthenticated remote attackers to crash the rpc-server by sending oversized message lengths. After the HELLO handshake, attackers can send a command such as SET_TENSOR with a length above std::vector::max_size(), triggering an uncaught std::length_error that aborts the process and denies service to all clients.