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{"bugzilla": {"description": "llama.cpp: llama.cpp: Denial of Service in Android JNI wrapper via malicious model file", "id": "2512286", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512286"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["llama.cpp builds b1886 through b7445 contain a null pointer dereference vulnerability in the LLaMA-Android JNI wrapper where the bench_1model() function fails to validate the model context pointer before dereferencing it. Attackers can supply a malicious, corrupt, or truncated model file to trigger a null context condition, causing a SIGSEGV crash that terminates the Android application process and results in denial of service.", "A flaw was found in llama.cpp. A null pointer dereference vulnerability exists in the LLaMA-Android JNI wrapper. This flaw allows an attacker to provide a malicious or corrupt model file, which causes the `bench_1model()` function to attempt to use an invalid memory address. This leads to a crash of the Android application, resulting in a denial of service (DoS) where the application becomes unavailable."], "mitigation": {"lang": "en:us", "value": "No mitigation is necessary; the Android-specific vulnerable code path is not present in the shipped Linux packages."}, "name": "CVE-2026-70639", "public_date": "2026-08-06T15:37:30Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-70639\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-70639\nhttps://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches\nhttps://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388\nhttps://github.com/ggml-org/llama.cpp/releases/tag/b7446"], "statement": "llama.cpp is packaged for Fedora (python-llama-cpp-python, ollama, llama-cpp) as Linux command-line/library builds. This flaw is specific to the LLaMA-Android JNI wrapper's bench_1model() function, which is Android-only code that is not compiled or reachable in the standard Linux RPM builds. No Red Hat/community product is affected.", "threat_severity": "Moderate"}

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