Vulnerability CVE-2017-14686
Published: 2017-09-22

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.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Artifex -> Mupdf 

 References:
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
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