Vulnerability CVE-2020-16600

Vulnerability Name:

CVE-2020-16600 (CCN-192901)

Assigned:

2020-03-27

Published:

2020-03-27

Updated:

2020-12-14

Summary:

A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander - a static - to point to previously freed memory instead of a newband_writer.

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

5.5 Medium (CCN 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 (CCN 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

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

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

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

Vulnerability Type:

CWE-416

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2020-16600

Source: CCN
Type: mupdf GIT Repository
Bug 702253: Avoid a use-after-free in fz_drop_band_writer release 1.17.0

Source: MISC
Type: Patch, Third Party Advisory
http://git.ghostscript.com/?p=mupdf.git;h=96751b25462f83d6e16a9afaf8980b0c3f979c8b

Source: CCN
Type: Bugzilla Bug 702253
Use After Free in fz_drop_band_writer

Source: MISC
Type: Third Party Advisory
https://bugs.ghostscript.com/show_bug.cgi?id=702253

Source: XF
Type: UNKNOWN
mupdf-cve202016600-dos(192901)

Vulnerable Configuration:

Configuration 1:

cpe:/a:artifex:mupdf:*:*:*:*:*:*:*:* (Version <= 1.16.1)

OR cpe:/a:artifex:mupdf:1.17.0:rc1:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:artifex:mupdf:1.17.0:-:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:100355	P	(Important)	2021-11-22
oval:org.opensuse.security:def:111077	P	Security update for mupdf (Important)	2021-10-11
oval:org.opensuse.security:def:11138	P	Security update for mupdf (Important)	2021-10-11
oval:org.opensuse.security:def:103119	P	Security update for mupdf (Important)	2021-10-11
oval:org.opensuse.security:def:111509	P	Security update for mupdf (Important)	2021-10-11
oval:org.opensuse.security:def:93642	P	Security update for mupdf (Important)	2021-10-11
oval:org.opensuse.security:def:107021	P	Security update for mupdf (Important)	2021-10-11
oval:org.opensuse.security:def:96429	P	Security update for mupdf (Important)	2021-10-11
oval:org.opensuse.security:def:109776	P	Security update for mupdf (Important)	2021-10-11

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