Bug 1646443 (CVE-2018-18458)

Summary: CVE-2018-18458 xpdf: NULL pointer dereference in DCTStream::decodeImage function in Stream.cc
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: pertusus, tcallawa
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-10 10:41:54 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: 1646446, 1646444    
Bug Blocks:    

Description Laura Pardo 2018-11-05 14:57:32 UTC
A flaw was found in Xpdf 4.00. A NULL pointer dereference in the function DCTStream::decodeImage in Stream.cc allows remote attackers to cause a denial of service via a crafted pdf file. 


References:
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217 
https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm

Comment 1 Laura Pardo 2018-11-05 14:58:09 UTC
Created xpdf tracking bugs for this issue:

Affects: epel-all [bug 1646446]
Affects: fedora-all [bug 1646444]

Comment 2 Product Security DevOps Team 2019-06-10 10:41:54 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.