Vulnerability CVE-2017-14686

Vulnerability Name:

CVE-2017-14686 (CCN-132468)

Assigned:

2017-09-22

Published:

2017-09-22

Updated:

2017-11-05

Summary:

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 v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-119

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2017-14686

Source: CCN
Type: mupdf.git Repository
Fix 698540: Check name, comment and meta size field signs.

Source: MISC
Type: Patch
http://git.ghostscript.com/?p=mupdf.git;h=0f0fbc07d9be31f5e83ec5328d7311fdfd8328b1

Source: DEBIAN
Type: UNKNOWN
DSA-4006

Source: MISC
Type: Exploit, Third Party Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=698540

Source: XF
Type: UNKNOWN
artifex-mupdf-cve201714686-code-exec(132468)

Source: MISC
Type: Third Party Advisory
https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-14686

Source: CCN
Type: wlinzi GIT Repository
CVE-2017-14691

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-14686

Vulnerable Configuration:

Configuration 1:

cpe:/a:artifex:mupdf:1.11:*:*:*:*:*:*:*

AND

cpe:/o:microsoft:windows:*:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:artifex:mupdf:1.11:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.xenial:def:2017146860000000	V	CVE-2017-14686 on Ubuntu 16.04 LTS (xenial) - medium.	2017-09-22
oval:com.ubuntu.artful:def:201714686000	V	CVE-2017-14686 on Ubuntu 17.10 (artful) - medium.	2017-09-22
oval:com.ubuntu.xenial:def:201714686000	V	CVE-2017-14686 on Ubuntu 16.04 LTS (xenial) - medium.	2017-09-22
oval:com.ubuntu.disco:def:2017146860000000	V	CVE-2017-14686 on Ubuntu 19.04 (disco) - medium.	2017-09-22
oval:com.ubuntu.bionic:def:201714686000	V	CVE-2017-14686 on Ubuntu 18.04 LTS (bionic) - medium.	2017-09-22
oval:com.ubuntu.cosmic:def:2017146860000000	V	CVE-2017-14686 on Ubuntu 18.10 (cosmic) - medium.	2017-09-22
oval:com.ubuntu.cosmic:def:201714686000	V	CVE-2017-14686 on Ubuntu 18.10 (cosmic) - medium.	2017-09-22
oval:com.ubuntu.bionic:def:2017146860000000	V	CVE-2017-14686 on Ubuntu 18.04 LTS (bionic) - medium.	2017-09-22
oval:com.ubuntu.trusty:def:201714686000	V	CVE-2017-14686 on Ubuntu 14.04 LTS (trusty) - medium.	2017-09-22

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