Bug 1652583 (CVE-2018-19409)

Summary:	CVE-2018-19409 ghostscript: Improperly implemented security check in zsetdevice function in psi/zdevice.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:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	cbuissar, deekej, mosvald, rskvaril, twaugh, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	ghostscript 9.26	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-12-18 08:36:45 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:	1652584, 1652935, 1652936, 1652937
Bug Blocks:	1652585

Description Pedro Sampaio 2018-11-22 12:27:30 UTC

An issue was discovered in Artifex Ghostscript before 9.26. LockSafetyParams is not checked correctly if another device is used.

Upstream bug:

https://bugs.ghostscript.com/show_bug.cgi?id=700176

Upstream patch:

https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=661e8d8fb
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=ea1b3ef43

References:

https://www.ghostscript.com/doc/9.26/History9.htm#Version9.26

Comment 1 Pedro Sampaio 2018-11-22 12:27:53 UTC

Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1652584]

Comment 2 Cedric Buissart 2018-11-23 15:43:09 UTC

Upstream patches :
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=661e8d8fb
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=ea1b3ef43

Comment 6 errata-xmlrpc 2018-12-17 19:58:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3834 https://access.redhat.com/errata/RHSA-2018:3834

Comment 7 Cedric Buissart 2018-12-18 08:36:48 UTC

Mitigation:

Please refer to the "Mitigation" section of CVE-2018-16509 : https://access.redhat.com/security/cve/cve-2018-16509

Comment 8 Cedric Buissart 2018-12-18 08:41:37 UTC

Statement:

Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Important, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.