Bug 1625055 (CVE-2018-16403)

Summary:	CVE-2018-16403 elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev.c and libwd/dwarf_hasattr.c causes crash
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abhgupta, bmcclain, dbaker, dblechte, dfediuck, drepper, eedri, fche, jakub, jokerman, kanderso, mcermak, me, mgoldboi, michal.skrivanek, mjw, mjw, mnewsome, ohudlick, sbonazzo, sherold, sthangav, trankin
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:	2019-08-06 13:19:17 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:	1625056, 1625057, 1625418, 1625419, 1625420
Bug Blocks:	1625054

Description Sam Fowler 2018-09-04 04:45:51 UTC

Elfutils through version 0.173 is vulnerable to a heap-based buffer over-read due to incorrect checks for the end of attribute lists in the libdw/dwarf_getabbrev.c:__libdw_getabbrev() and libdw/dwarf_hasattr.c:dwarf_hasattr() functions. An attacker could exploit this to cause a crash via a crafted ELF.


Upstream Bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=23529


Upstream Patch:

https://sourceware.org/git/?p=elfutils.git;a=patch;h=6983e59b727458a6c64d9659c85f08218bc4fcda

Comment 1 Sam Fowler 2018-09-04 04:46:40 UTC

Created elfutils tracking bugs for this issue:

Affects: fedora-all [bug 1625056]

Comment 6 errata-xmlrpc 2019-08-06 12:27:04 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2197 https://access.redhat.com/errata/RHSA-2019:2197

Comment 7 Product Security DevOps Team 2019-08-06 13:19:17 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-16403