Bug 1112426 (CVE-2018-18457)

Summary:	VUL-1: CVE-2018-18457: xpdf: DCTStream:readScan NULL pointer dereference
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Karol Babioch <karol>
Component:	Incidents	Assignee:	Peter Simons <peter.simons>
Status:	RESOLVED INVALID	QA Contact:	Security Team bot <security-team>
Severity:	Minor
Priority:	P4 - Low	CC:	pgajdos, smash_bz, stoyan.manolov
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/216993/
Whiteboard:	CVSSv3:SUSE:CVE-2018-18457:3.3:(AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) maint:planned:update
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Bug Depends on:
Bug Blocks:	1133493

Description Karol Babioch 2018-10-18 14:09:20 UTC

CVE-2018-18457

The function DCTStream::readScan in Stream.cc in Xpdf 4.00 allows remote
attackers to cause a denial of service (NULL pointer dereference) via a
crafted pdf file, as demonstrated by pdftoppm.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-18457
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-18457.html

Comment 1 Petr Gajdos 2023-06-12 15:58:45 UTC

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

The testcase does not expose any valgrind error as far as I tested on all codestreams. xpdf is not maintained anymore, suggest to close this bug.