Bug 1628026 (CVE-2018-16420)

Summary:	CVE-2018-16420 opensc: Buffer overflows handling responses from ePass 2003 Cards in card-epass2003.c:decrypt_response()
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gmazyland, jjelen, klember, nmavrogi, redhat, tmraz
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	opensc 0.19.0-rc1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-08-06 13:19:39 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:	1628028, 1628029, 1630209
Bug Blocks:	1622787

Description Sam Fowler 2018-09-12 05:59:01 UTC

Several buffer overflows when handling responses from an ePass 2003 Card in decrypt_response in libopensc/card-epass2003.c in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact.


External References:

https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/


Upstream Patch:

https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-b36536074d13447fbbec061e0e64d15d

Comment 1 Sam Fowler 2018-09-12 05:59:29 UTC

Created opensc tracking bugs for this issue:

Affects: fedora-all [bug 1628028]

Comment 4 Richard 2018-12-10 10:34:29 UTC

I verified that the vulnerable code is present in upstream commit 777e2a3751e3f6d53f056c98e9e20e42af674fb1 used by opensc 0:0.16.0-10.20170227git777e2a3.el7 
Should I open a new bug to request a fix for RHEL-7 ?

Comment 5 Richard 2018-12-10 10:45:34 UTC

I'm assuming bug 1628029 is already opened for this which will hopefully be resolved by the rebase in bug 1656791 for RHEL-7.7 ?

Comment 6 errata-xmlrpc 2019-08-06 12:21:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2154 https://access.redhat.com/errata/RHSA-2019:2154

Comment 7 Product Security DevOps Team 2019-08-06 13:19:39 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-2018-16420