Vulnerability CVE-2018-5686

Vulnerability Name:

CVE-2018-5686 (CCN-137668)

Assigned:

2018-01-13

Published:

2018-01-13

Updated:

2020-01-30

Summary:

In MuPDF 1.12.0, there is an infinite loop vulnerability and application hang in the pdf_parse_array function (pdf/pdf-parse.c) because EOF is not considered. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted pdf file.

CVSS v3 Severity:

5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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): None Integrity (I): None Availibility (A): High

3.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
2.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/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): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

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

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

1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-835

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2018-5686

Source: CCN
Type: MuPDF GIT Repository
Don't allow reading from a 'dead' fz_stream.

Source: CCN
Type: Bugzilla Bug 698860
Infinite Loop in pdf_parse_array function (source/pdf/pdf-parse.c)

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=698860

Source: XF
Type: UNKNOWN
mupdf-cve20185686-dos(137668)

Source: MLIST
Type: Third Party Advisory
[debian-lts-announce] 20190628 [SECURITY] [DLA 1838-1] mupdf security update

Source: GENTOO
Type: Third Party Advisory
GLSA-201811-15

Source: DEBIAN
Type: Third Party Advisory
DSA-4334

Vulnerable Configuration:

Configuration 1:

cpe:/a:artifex:mupdf:1.12.0:-:*:*:*:*:*:*

Configuration 2:

cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:20185686	V	CVE-2018-5686	2022-06-30
oval:org.opensuse.security:def:113003	P	mupdf-1.18.0-1.7 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:106449	P	Security update for binutils (Moderate)	2021-11-09
oval:com.ubuntu.bionic:def:201856860000000	V	CVE-2018-5686 on Ubuntu 18.04 LTS (bionic) - medium.	2018-01-14
oval:com.ubuntu.xenial:def:201856860000000	V	CVE-2018-5686 on Ubuntu 16.04 LTS (xenial) - medium.	2018-01-14
oval:com.ubuntu.disco:def:201856860000000	V	CVE-2018-5686 on Ubuntu 19.04 (disco) - medium.	2018-01-14
oval:com.ubuntu.artful:def:20185686000	V	CVE-2018-5686 on Ubuntu 17.10 (artful) - medium.	2018-01-13
oval:com.ubuntu.xenial:def:20185686000	V	CVE-2018-5686 on Ubuntu 16.04 LTS (xenial) - medium.	2018-01-13
oval:com.ubuntu.bionic:def:20185686000	V	CVE-2018-5686 on Ubuntu 18.04 LTS (bionic) - medium.	2018-01-13
oval:com.ubuntu.cosmic:def:20185686000	V	CVE-2018-5686 on Ubuntu 18.10 (cosmic) - medium.	2018-01-13
oval:com.ubuntu.cosmic:def:201856860000000	V	CVE-2018-5686 on Ubuntu 18.10 (cosmic) - medium.	2018-01-13
oval:com.ubuntu.trusty:def:20185686000	V	CVE-2018-5686 on Ubuntu 14.04 LTS (trusty) - medium.	2018-01-13

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