CVE-2017-14686 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

http://git.ghostscript.com/?p=mupdf.git;h=0f0fbc07d9be31f5e83ec5328d7311fdfd8328b1 http://www.debian.org/security/2017/dsa-4006 https://bugs.ghostscript.com/show_bug.cgi?id=698540 https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-14686

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8