SumatraPDF 2.1.1/MuPDF 1.0 allows remote attackers to cause an Integer Overflow in the lex_number() function via a corrupt PDF file.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://www.exploit-db.com/exploits/23246 | exploit vdb entry third party advisory |
| https://bugs.ghostscript.com/show_bug.cgi?id=693371 | |
| https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=f919270b6a732ff45c3ba2d0c105e2b39e9c9bc9 |