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| author | Artem Strygin <art-snake@yandex-team.ru> | 2018-06-07 18:01:27 +0000 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2018-06-07 18:01:27 +0000 |
| commit | f51a4767ee7854991d94d6814aa13f5763f05760 (patch) | |
| tree | dd519311670498683fb59d3d141c793c5b9da76b | |
| parent | e769ab578af3cf646f6268c992fd9c9dcd494708 (diff) | |
| download | pdfium-f51a4767ee7854991d94d6814aa13f5763f05760.tar.xz | |
Check is first page number valid in CPDF_LinearizedHeader.
Bug=chromium:850407,chromium:850440
Change-Id: I0115f75677db618b0de5e1e78b13da80b1da9559
Reviewed-on: https://pdfium-review.googlesource.com/34390
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
| -rw-r--r-- | core/fpdfapi/parser/cpdf_linearized_header.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/core/fpdfapi/parser/cpdf_linearized_header.cpp b/core/fpdfapi/parser/cpdf_linearized_header.cpp index 994d69f9b6..5032bc3807 100644 --- a/core/fpdfapi/parser/cpdf_linearized_header.cpp +++ b/core/fpdfapi/parser/cpdf_linearized_header.cpp @@ -43,6 +43,7 @@ bool IsLinearizedHeaderValid(const CPDF_LinearizedHeader* header, return header->GetFileSize() == file_size && static_cast<int>(header->GetFirstPageNo()) >= 0 && header->GetFirstPageNo() < kMaxInt && + header->GetFirstPageNo() < header->GetPageCount() && header->GetMainXRefTableFirstEntryOffset() < file_size && header->GetPageCount() > 0 && header->GetFirstPageEndOffset() < file_size && |