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| author | JUN FANG <jun_fang@foxitsoftware.com> | 2015-04-11 09:33:23 -0700 |
|---|---|---|
| committer | JUN FANG <jun_fang@foxitsoftware.com> | 2015-04-11 09:33:23 -0700 |
| commit | f265ee5a5f0e96d1a91111f4f27eb2f1edd8835a (patch) | |
| tree | 61752f617913671b60e9c0cfb2f6c21fb652fc26 /core/src/fpdftext | |
| parent | 9c7b0940569ee5eb1794e8db4e47ecaf3a64315d (diff) | |
| download | pdfium-f265ee5a5f0e96d1a91111f4f27eb2f1edd8835a.tar.xz | |
Fix a heap buffer overflow issue in CPDF_CMap::GetNextChar
Add a check to make sure offset is less than the size of string in the function of GetNextChar().
BUG=471651
R=tsepez@chromium.org
Review URL: https://codereview.chromium.org/1067073003
Diffstat (limited to 'core/src/fpdftext')
| -rw-r--r-- | core/src/fpdftext/fpdf_text.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/core/src/fpdftext/fpdf_text.cpp b/core/src/fpdftext/fpdf_text.cpp index a4a124d5e6..d6d6de9a83 100644 --- a/core/src/fpdftext/fpdf_text.cpp +++ b/core/src/fpdftext/fpdf_text.cpp @@ -181,7 +181,7 @@ CTextBaseLine* CTextPage::InsertTextBox(CTextBaseLine* pBaseLine, FX_FLOAT basey FX_LPCSTR pStr = str; int len = str.GetLength(), offset = 0; while (offset < len) { - FX_DWORD ch = pFont->GetNextChar(pStr, offset); + FX_DWORD ch = pFont->GetNextChar(pStr, len, offset); CFX_WideString unicode_str = pFont->UnicodeFromCharCode(ch); if (unicode_str.IsEmpty()) { text += (FX_WCHAR)ch; |