Bug 1646459 (CVE-2018-18651) - CVE-2018-18651 xpdf: large loop catalog->getNumPages() in AcroForm.cc
Summary: CVE-2018-18651 xpdf: large loop catalog->getNumPages() in AcroForm.cc
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2018-18651
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1646461 1646460
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-11-05 15:10 UTC by Laura Pardo
Modified: 2019-09-29 15:02 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-06-10 10:41:59 UTC


Attachments (Terms of Use)

Description Laura Pardo 2018-11-05 15:10:36 UTC
An issue was discovered in Xpdf 4.00. A hang caused by large loop catalog->getNumPages() in AcroForm.cc allows attackers to launch a denial of service via a specific pdf file. This is mainly caused by a large number after the /Count field in the file. 


References:
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747

Comment 1 Laura Pardo 2018-11-05 15:11:15 UTC
Created xpdf tracking bugs for this issue:

Affects: epel-all [bug 1646461]
Affects: fedora-all [bug 1646460]

Comment 2 Product Security DevOps Team 2019-06-10 10:41:59 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.


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