Bug 1870248 (CVE-2020-16309)

Summary: CVE-2020-16309 ghostscript: buffer overflow in lxm5700m_print_page() in devices/gdevlxm.c could result in a DoS
Product: [Other] Security Response Reporter: Michael Kaplan <mkaplan>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akostadi, amasferr, chazlett, deekej, dmayorov, jlledo, jlyle, mosvald, pantinor, rhel-process-autobot, tsedmik, twaugh, watson-tool-maintainers, zdohnal
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: ghostscript 9.51 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-05-18 20:35:41 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: 1870250, 1872492, 1872493    
Bug Blocks: 1870273    

Description Michael Kaplan 2020-08-19 15:26:05 UTC 
A buffer overflow vulnerability in lxm5700m_print_page() in devices/gdevlxm.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted eps file. This is fixed in v9.51.

References:

https://bugs.ghostscript.com/show_bug.cgi?id=701827
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=a6f7464dddc689386668a38b92dfd03cc1b38a10
Comment 1 Michael Kaplan 2020-08-19 15:26:22 UTC 
Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1870250]
Comment 3 Todd Cullum 2020-08-25 21:57:33 UTC 
Flaw summary:
An incorrect buffer offset calculation could result in a heap buffer overflow -> out-of-bounds write in lxm5700m_print_page() of /devices/gdevlxm.c when ghostscript is provided with a crafted input PDF file.
Comment 5 errata-xmlrpc 2021-05-18 15:37:10 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 6 Product Security DevOps Team 2021-05-18 20:35:41 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-2020-16309