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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/fpdfapi/fpdf_font/font_int.h | |
| 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/fpdfapi/fpdf_font/font_int.h')
| -rw-r--r-- | core/src/fpdfapi/fpdf_font/font_int.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/core/src/fpdfapi/fpdf_font/font_int.h b/core/src/fpdfapi/fpdf_font/font_int.h index 6048ba981d..43f4e302af 100644 --- a/core/src/fpdfapi/fpdf_font/font_int.h +++ b/core/src/fpdfapi/fpdf_font/font_int.h @@ -95,8 +95,8 @@ public: FX_WORD CIDFromCharCode(FX_DWORD charcode) const; FX_DWORD CharCodeFromCID(FX_WORD CID) const; int GetCharSize(FX_DWORD charcode) const; - FX_DWORD GetNextChar(const FX_CHAR* pString, int& offset) const; - int CountChar(const FX_CHAR* pString, int size) const; + FX_DWORD GetNextChar(FX_LPCSTR pString, int nStrLen, int& offset) const; + int CountChar(FX_LPCSTR pString, int size) const; int AppendChar(FX_LPSTR str, FX_DWORD charcode) const; typedef enum {OneByte, TwoBytes, MixedTwoBytes, MixedFourBytes} CodingScheme; protected: |