Bug 1585914 (CVE-2018-11645)

Summary: CVE-2018-11645 ghostscript: status command permitted with -dSAFER in psi/zfile.c allowing attackers to identify the size and existence of files
Product: [Other] Security Response Reporter: Sam Fowler <sfowler>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: cbuissar, qguo, twaugh, zdohnal
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: ghostcript 9.21 Doc Type: If docs needed, set a value
Doc Text:
Ghostscript did not honor the -dSAFER option when executing the "status" instruction, which can be used to retrieve information such as a file's existence and size. A specially crafted postscript document could use this flow to gain information on the targeted system's filesystem content.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2019-08-06 19:18:57 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: 1588586    
Bug Blocks: 1585915    

Description Sam Fowler 2018-06-05 05:42:20 UTC 
Ghostscript before 9.21rc1 permits the status command even if -dSAFER is used, which can allow remote attackers to determine the existence and size of arbitrary files.


Upstream bug:

https://bugs.ghostscript.com/show_bug.cgi?id=697193


Upstream patch:

http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=b60d50b7567369ad856cebe1efb6cd7dd2284219
Comment 8 errata-xmlrpc 2019-08-06 12:36:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2281 https://access.redhat.com/errata/RHSA-2019:2281
Comment 9 Product Security DevOps Team 2019-08-06 19:18:57 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-2018-11645