Xpdf PDFTOPS Multiple Integer Overflow Vulnerabilities

The pdftops utility is reported prone to multiple integer-overflow vulnerabilities because it fails to properly ensure that user-supplied input doesn't result in the overflowing of integer values. This may result in data being copied past the end of a memory buffer.

These overflows cause the application to allocate memory regions that are smaller than expected. Subsequent operations are likely to overwrite memory regions past the end of the allocated buffer, allowing attackers to overwrite critical memory control structures. This may allow attackers to control the flow of execution and potentially execute attacker-supplied code in the context of the affected application.

Applications using embedded xpdf code may be vulnerable to these issues as well.


 

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