llama.cpp builds b1886 through b7445 contain an integer overflow vulnerability in the LLaMA-Android JNI wrapper where the new_1batch() function multiplies sizeof(llama_seq_id) by an attacker-controlled n_seq_max parameter without overflow validation, causing heap buffer allocation to wrap and allocate insufficient memory. Attackers can exploit this by providing a crafted n_seq_max value through a malicious model file or JNI call to trigger heap corruption and achieve denial of service or arbitrary code execution on Android applications using the LLaMA-Android binding.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
ggml-org:llama.cpp
References 4
https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches
disclosure@vulncheck.com
https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac…
disclosure@vulncheck.com
https://github.com/ggml-org/llama.cpp/releases/tag/b7446
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/llama-cpp-b1886-b7445-integer-overflow-via…
disclosure@vulncheck.com