Bug 2083391 (CVE-2022-30524)

Summary:	CVE-2022-30524 xpdf: invalid memory access
Product:	[Other] Security Response	Reporter:	Anten Skrabec <askrabec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	pertusus, spotrh
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:	2022-05-10 02:16:00 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:	2083393, 2083394, 2083395
Bug Blocks:	2083392

Description Anten Skrabec 2022-05-09 21:57:08 UTC

There is an invalid memory access in the TextLine class in TextOutputDev.cc in Xpdf 4.0.4 because the text extractor mishandles characters at large y coordinates. It can be triggered by (for example) sending a crafted pdf file to the pdftotext binary, which allows a remote attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.

https://forum.xpdfreader.com/viewtopic.php?f=3&t=42261

Comment 1 Anten Skrabec 2022-05-09 21:59:21 UTC

Created xpdf tracking bugs for this issue:

Affects: epel-7 [bug 2083393]
Affects: fedora-34 [bug 2083394]
Affects: fedora-35 [bug 2083395]

Comment 2 Product Security DevOps Team 2022-05-10 02:15:59 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.