Status: New
Owner: ----
CC: k...@google.com, masc...@google.com, jdevlieg...@apple.com,
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Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible
Engine-libfuzzer Proj-llvm Reported-2018-07-16
Type: Bug-Security
New issue 9444 by ClusterFuzz-External: llvm/llvm-dwarfdump-fuzzer:
Heap-buffer-overflow in llvm::DataExtractor::getU32
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9444
Detailed report: https://oss-fuzz.com/testcase?key=5133751028809728
Project: llvm
Fuzzer: libFuzzer_llvm_llvm-dwarfdump-fuzzer
Fuzz target binary: llvm-dwarfdump-fuzzer
Job Type: libfuzzer_asan_llvm
Platform Id: linux
Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x60b000000210
Crash State:
llvm::DataExtractor::getU32
llvm::DWARFUnitHeader::extract
std::__1::unique_ptr<llvm::DWARFCompileUnit,
std::__1::default_delete<llvm::DWAR
Sanitizer: address (ASAN)
Recommended Security Severity: Medium
Regressed:
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm&range=201805140713:201805150659
Reproducer Testcase:
https://oss-fuzz.com/download?testcase_id=5133751028809728
Issue filed automatically.
See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for
more information.
When you fix this bug, please
* mention the fix revision(s).
* state whether the bug was a short-lived regression or an old bug in any
stable releases.
* add any other useful information.
This information can help downstream consumers.
If you need to contact the OSS-Fuzz team with a question, concern, or any
other feedback, please file an issue at
https://github.com/google/oss-fuzz/issues.
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