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 readzipdir_imp in fitz/unzip.c does not check whether size fields in a ZIP entry are negative numbers.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.12.0+ds1-1", "binary_name": "libmupdf-dev" }, { "binary_version": "1.12.0+ds1-1", "binary_name": "mupdf" }, { "binary_version": "1.12.0+ds1-1", "binary_name": "mupdf-tools" } ] }