Bug 1870165 (CVE-2020-16306) - CVE-2020-16306 ghostscript: NULL pointer dereference in devices/gdevtsep.c could result in a DoS
Summary: CVE-2020-16306 ghostscript: NULL pointer dereference in devices/gdevtsep.c co...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-16306
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1870166 1871215 1871216
Blocks: 1870273
TreeView+ depends on / blocked
 
Reported: 2020-08-19 13:16 UTC by Michael Kaplan
Modified: 2021-05-18 20:34 UTC (History)
6 users (show)

Fixed In Version: ghostscript 9.51
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Clone Of:
Environment:
Last Closed: 2021-05-18 20:34:59 UTC


Attachments (Terms of Use)

Description Michael Kaplan 2020-08-19 13:16:44 UTC
A null pointer dereference vulnerability in devices/gdevtsep.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted postscript file. This is fixed in v9.51.

References:

http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=aadb53eb834b3def3ef68d78865ff87a68901804
https://bugs.ghostscript.com/show_bug.cgi?id=701821

Comment 1 Michael Kaplan 2020-08-19 13:17:00 UTC
Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1870166]

Comment 2 Todd Cullum 2020-08-21 15:37:31 UTC
Flaw summary:

This flaw is caused by failure to return upon error condition in /devices/gdevtsep.c. The tiffsep_print_page() and tiffsep1_print_page() routines both check for an error condition after parsing output file names, get a return code, but fail to actually abort if the error condition is met.

Comment 4 Todd Cullum 2020-08-21 15:52:50 UTC
Mitigation:

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Comment 6 errata-xmlrpc 2021-05-18 15:36:45 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:1852 https://access.redhat.com/errata/RHSA-2021:1852

Comment 7 Product Security DevOps Team 2021-05-18 20:34:59 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-2020-16306


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