mirror of https://github.com/google/oss-fuzz.git
41 lines
1.5 KiB
Java
41 lines
1.5 KiB
Java
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////////
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import com.code_intelligence.jazzer.api.FuzzedDataProvider;
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import org.yaml.snakeyaml.LoaderOptions;
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import org.yaml.snakeyaml.Yaml;
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import org.yaml.snakeyaml.constructor.SafeConstructor;
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import org.yaml.snakeyaml.error.YAMLException;
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public class SecureYamlFuzzer {
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public static void fuzzerTestOneInput(FuzzedDataProvider data) {
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try {
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LoaderOptions options = new LoaderOptions();
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options.setAllowDuplicateKeys(false);
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options.setMaxAliasesForCollections(5);
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options.setAllowRecursiveKeys(false);
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options.setNestingDepthLimit(3);
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// since the input is often in UTF-8 for OSS Fuzz, code points are bytes
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options.setCodePointLimit(5*1024);
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Yaml yaml = new Yaml(new SafeConstructor(options));
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yaml.load(data.consumeRemainingAsString());
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} catch (YAMLException | IllegalArgumentException e) {
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return;
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}
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}
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}
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