Bug 1870240 (CVE-2020-16291) - CVE-2020-16291 ghostscript: buffer overflow in contrib/gdevdj9.c could result in a DoS
Summary: CVE-2020-16291 ghostscript: buffer overflow in contrib/gdevdj9.c could result...
Alias: CVE-2020-16291
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1870241 1872478 1872479
Blocks: 1870273
TreeView+ depends on / blocked
Reported: 2020-08-19 15:19 UTC by Michael Kaplan
Modified: 2021-05-18 20:35 UTC (History)
7 users (show)

Fixed In Version: ghostscript 9.51
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Clone Of:
Last Closed: 2021-05-18 20:35:31 UTC

Attachments (Terms of Use)

Description Michael Kaplan 2020-08-19 15:19:08 UTC
A buffer overflow vulnerability in contrib/gdevdj9.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted PDF file. This is fixed in v9.51.



Comment 1 Michael Kaplan 2020-08-19 15:19:26 UTC
Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1870241]

Comment 3 Todd Cullum 2020-08-25 21:03:51 UTC
Flaw summary:

Several issues in /contrib/gdevdj9.c contribute to this flaw which is triggered in mem_true32_fill_rectangle() of /contrib/gdevdj9.c. cdj970_print_page is earlier in the backtrace and is a source of the vulnerability, along with its associated functions as seen in the upstream patch. The sink here is the `dest` pointer when it is passed to memset. It is caused by mishandling of resolutions and can be triggered if an attacker provides a crafted PDF file.

Comment 4 Todd Cullum 2020-08-25 21:08:56 UTC

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 15:37:05 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 20:35:31 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


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