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Bug 1441629 (CVE-2017-7613)

Summary:	CVE-2017-7613 elfutils: elflint.c does not validate the number of sections and segments
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aoliva, drepper, fche, jakub, kanderso, mcermak, me, mjw, mjw, mnewsome, ohudlick, roland
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:	2017-04-12 11:29:09 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:	1441630
Bug Blocks:

Description Andrej Nemec 2017-04-12 11:24:31 UTC

elflint.c in elfutils does not validate the number of sections and the number of segments, which allows attackers to cause a denial of service (memory consumption) via a crafted ELF file.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=21312

Upstream patch:

https://sourceware.org/ml/elfutils-devel/2017-q1/msg00133.html

References:

https://blogs.gentoo.org/ago/2017/04/03/elfutils-memory-allocation-failure-in-xcalloc-xmalloc-c/

Comment 1 Andrej Nemec 2017-04-12 11:27:16 UTC

Created elfutils tracking bugs for this issue:

Affects: fedora-all [bug 1441630]