Bug 1444944 (CVE-2017-7948)

Summary:	CVE-2017-7948 ghostscript: Integer overflow in the mark_curve function
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abhgupta, deekej, kseifried, tiwillia, twaugh, zdohnal
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:	2017-06-27 16:13:31 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:	1444945
Bug Blocks:	1444946

Description Adam Mariš 2017-04-24 15:10:32 UTC

Integer overflow in the mark_curve function in Artifex Ghostscript 9.21 allows remote attackers to cause a denial of service (out-of-bounds write and application crash) or possibly have unspecified other impact via a crafted PostScript document.

Upstream bug:

https://bugs.ghostscript.com/show_bug.cgi?id=697762

Upstream patch:

http://git.ghostscript.com/?p=ghostpdl.git;h=8210a2864372723b49c526e2b102fdc00c9c4699

Comment 1 Adam Mariš 2017-04-24 15:11:11 UTC

Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1444945]

Comment 5 Stefan Cornelius 2017-06-27 16:11:54 UTC

I can't reproduce this issue. It looks like this bug was introduced when adding a new scanner via http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=18ef67078eb63103ed5e0de627296cb86f493d42

The ghostscript versions we ship do not include this new scanner, thus should be unaffected by it.

Comment 6 Stefan Cornelius 2017-06-27 16:12:06 UTC

Statement:

This issue did not affect the versions of ghostscript as shipped with Red Hat Enterprise Linux 5, 6, and 7. This issue did not affect the versions of ghostscript as shipped with OpenShift Enterprise 2.