Integer Overflow Denial of Service Vulnerability in Xpdf 4.00

CVE-2018-18650 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:N/A:P

An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.

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