README.md

Caffe Integer Overflow PoC

Proof-of-concept files for multiple signed integer overflow vulnerabilities in BVLC/caffe.

Files

File	Description
dilation_overflow_dos.prototxt	Crafted model: dilation=1073741824 triggers signed overflow → DoS crash
silent_overflow_bypass.prototxt	Crafted model: dilation=1073741824, kernel=5 silently bypasses all CHECKs
pad_overflow_pooling.prototxt	Crafted model: pad=1073741824 triggers pooling layer overflow
caffe_overflow_poc.cpp	Standalone C++ PoC reproducing the exact vulnerable arithmetic
ubsan_output.txt	UBSan output showing 11 signed-integer-overflow violations

Reproduction

# Compile with UBSan
clang++ -fsanitize=undefined -fsanitize-recover=all -O0 -o poc caffe_overflow_poc.cpp

# Run
./poc

Affected Code

• src/caffe/layers/conv_layer.cpp — compute_output_shape()
• src/caffe/layers/base_conv_layer.cpp — LayerSetUp(), Reshape()
• src/caffe/layers/pooling_layer.cpp — Reshape()
• src/caffe/util/im2col.cpp — im2col_cpu(), im2col_nd_core_cpu()

Responsible Disclosure

This repository is gated for responsible disclosure purposes.