Arbitrary Code Execution and Denial of Service Vulnerability in Artifex MuPDF 1.11 via Crafted .xps File

CVE-2017-14686 · MEDIUM Severity

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

Artifex MuPDF 1.11 allows attackers to execute arbitrary code or cause a denial of service via a crafted .xps file, related to a "User Mode Write AV near NULL starting at wow64!Wow64NotifyDebugger+0x000000000000001d" on Windows. This occurs because read_zip_dir_imp in fitz/unzip.c does not check whether size fields in a ZIP entry are negative numbers.

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