8 lines
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447 B
Text
8 lines
No EOL
447 B
Text
Source: https://code.google.com/p/google-security-research/issues/detail?id=549
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If the numFonts field in the TTC header is greater than (SIZE_MAX+1) / 4, an integer overflow occurs in filevirus_ttf() when calling CSafeGenFile::SafeLockBuffer.
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The TTC file format is described here https://www.microsoft.com/typography/otspec/otff.htm
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Proof of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/38934.zip |