From 334aed19f233450f62310818c6b108fa9d8862ff Mon Sep 17 00:00:00 2001
From: DavidKorczynski <david@adalogics.com>
Date: Fri, 5 Aug 2022 18:20:39 +0100
Subject: [PATCH] asn1crypto: initial integration (#8103)

---
 projects/asn1crypto/Dockerfile    | 21 ++++++++++++++++++
 projects/asn1crypto/build.sh      | 22 +++++++++++++++++++
 projects/asn1crypto/fuzz_parse.py | 36 +++++++++++++++++++++++++++++++
 projects/asn1crypto/project.yaml  | 10 +++++++++
 4 files changed, 89 insertions(+)
 create mode 100644 projects/asn1crypto/Dockerfile
 create mode 100755 projects/asn1crypto/build.sh
 create mode 100644 projects/asn1crypto/fuzz_parse.py
 create mode 100644 projects/asn1crypto/project.yaml

diff --git a/projects/asn1crypto/Dockerfile b/projects/asn1crypto/Dockerfile
new file mode 100644
index 000000000..bc02a5eb3
--- /dev/null
+++ b/projects/asn1crypto/Dockerfile
@@ -0,0 +1,21 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder-python
+RUN apt-get update && apt-get install -y make autoconf automake libtool
+RUN git clone --depth 1 https://github.com/wbond/asn1crypto asn1crypto
+WORKDIR asn1crypto
+COPY build.sh *.py $SRC/
diff --git a/projects/asn1crypto/build.sh b/projects/asn1crypto/build.sh
new file mode 100755
index 000000000..b8fc19949
--- /dev/null
+++ b/projects/asn1crypto/build.sh
@@ -0,0 +1,22 @@
+#!/bin/bash -eu
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+pip3 install .
+
+for fuzzer in $(find $SRC -name 'fuzz_*.py'); do
+  compile_python_fuzzer $fuzzer
+done
diff --git a/projects/asn1crypto/fuzz_parse.py b/projects/asn1crypto/fuzz_parse.py
new file mode 100644
index 000000000..68b2768f8
--- /dev/null
+++ b/projects/asn1crypto/fuzz_parse.py
@@ -0,0 +1,36 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+import sys
+import atheris
+from asn1crypto import parser
+
+def TestOneInput(data):
+    try:
+        parser.parse(data)
+    except (ValueError, TypeError) as e:
+        # Raises ValueError and TypeError:
+        # https://github.com/wbond/asn1crypto/blob/b5f03e6f9797c691a3b812a5bb1acade3a1f4eeb/asn1crypto/parser.py#L91-L92
+        pass
+
+
+def main():
+    atheris.instrument_all()
+    atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
+    atheris.Fuzz()
+
+if __name__ == "__main__":
+    main()
diff --git a/projects/asn1crypto/project.yaml b/projects/asn1crypto/project.yaml
new file mode 100644
index 000000000..59fd51b2e
--- /dev/null
+++ b/projects/asn1crypto/project.yaml
@@ -0,0 +1,10 @@
+homepage: "https://github.com/wbond/asn1crypto"
+language: python
+main_repo: "https://github.com/wbond/asn1crypto"
+fuzzing_engines:
+- libfuzzer
+sanitizers:
+- address
+- undefined
+vendor_ccs:
+- david@adalogics.com