Bug 1627916 (CVE-2018-16749)

Summary:	CVE-2018-16749 ImageMagick: reachable assertion in ReadOneJNGImage in coders/png.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jhorak, mike, pahan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-03-31 22:33:16 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1627918, 1701535
Bug Blocks:	1696300

Description Pedro Sampaio 2018-09-11 21:18:23 UTC

In ImageMagick 7.0.7-29 and earlier, a missing NULL check in ReadOneJNGImage in coders/png.c allows an attacker to cause a denial of service (WriteBlob assertion failure and application exit) via a crafted file.

Upstream issue:

https://github.com/ImageMagick/ImageMagick/issues/1119

Upstream patch:

https://github.com/ImageMagick/ImageMagick6/commit/1007b98f8795ad4bea6bc5f68a32d83e982fdae4

Comment 1 Pedro Sampaio 2018-09-11 21:22:38 UTC

Created ImageMagick tracking bugs for this issue:

Affects: fedora-all [bug 1627918]

Comment 4 Riccardo Schirone 2019-04-19 13:01:26 UTC

Assertion in WriteBlob() is reachable because coders/png.c:ReadOneJNGImage() does not properly check if the image passed as parameter is NULL.

Comment 7 errata-xmlrpc 2020-03-31 19:31:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:1180 https://access.redhat.com/errata/RHSA-2020:1180

Comment 8 Product Security DevOps Team 2020-03-31 22:33:16 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-16749