From 6438c4f36da162f72e0d53e8fff45cd6687b7f5c Mon Sep 17 00:00:00 2001 From: Nicolas Pena Date: Fri, 27 Jan 2017 10:05:36 -0500 Subject: Limit parsing recursion levels in CPDF_StreamParser MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We currently only limit the array recursion levels. This recursion level may also be reset when parsing. This is insufficient to protect against stack overflows. BUG=681920 Change-Id: I69bd0c912fb45c0e68b9b9fa961d43f0adc9bdd3 Reviewed-on: https://pdfium-review.googlesource.com/2434 Commit-Queue: Nicolás Peña Reviewed-by: Tom Sepez --- testing/libfuzzer/pdf_streamparser_fuzzer.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'testing') diff --git a/testing/libfuzzer/pdf_streamparser_fuzzer.cc b/testing/libfuzzer/pdf_streamparser_fuzzer.cc index 5cfa318c60..46113d42c6 100644 --- a/testing/libfuzzer/pdf_streamparser_fuzzer.cc +++ b/testing/libfuzzer/pdf_streamparser_fuzzer.cc @@ -10,7 +10,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { CPDF_StreamParser parser(data, size); - while (std::unique_ptr pObj = parser.ReadNextObject(true, 0)) + while (std::unique_ptr pObj = + parser.ReadNextObject(true, false, 0)) continue; return 0; -- cgit v1.2.3