Bug 1632471 (CVE-2018-17183) - CVE-2018-17183 ghostscript: User-writable error exception table
Summary: CVE-2018-17183 ghostscript: User-writable error exception table
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-17183
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1632472 1632474 1650210 1650211
Blocks: 1632473
TreeView+ depends on / blocked
 
Reported: 2018-09-24 20:56 UTC by Pedro Sampaio
Modified: 2021-02-16 23:00 UTC (History)
4 users (show)

Fixed In Version: ghostscript 9.26
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Clone Of:
Environment:
Last Closed: 2018-12-18 09:02:58 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3834 0 None None None 2018-12-17 19:58:21 UTC

Description Pedro Sampaio 2018-09-24 20:56:30 UTC 
Artifex Ghostscript before 9.25 allowed a user-writable error exception table, which could be used by remote attackers able to supply crafted PostScript to potentially overwrite or replace error handlers to inject code.

Upstream patch:

http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=fb713b3818b52d8a6cf62c951eba2e1795ff9624

Upstream bug:

https://bugs.ghostscript.com/show_bug.cgi?id=699708
Comment 1 Pedro Sampaio 2018-09-24 20:56:58 UTC 
Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1632472]
Comment 3 Cedric Buissart 2018-11-07 11:03:37 UTC 
Note:
The fix creates some regression : https://bugs.ghostscript.com/show_bug.cgi?id=699832 (fix commit : http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=1778db6bc10)
Comment 7 errata-xmlrpc 2018-12-17 19:58:20 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 8 Cedric Buissart 2018-12-18 08:52:39 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/.
Comment 9 Cedric Buissart 2018-12-18 08:52:41 UTC 
Mitigation:

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