Bug 1410074 (CVE-2016-10109)

Summary:	CVE-2016-10109 pcsc-lite: Use-after-free of cardsList due to SCardReleaseContext invocations
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	klember, ludovic.rousseau+fedoraproject, ludovic.rousseau, nmavrogi, rrelyea
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	pcsc-lite 1.8.20	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:05:06 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:	1410075
Bug Blocks:	1410078

Description Andrej Nemec 2017-01-04 12:02:47 UTC

A vulnerability was found in PCSC-Lite.  The SCardReleaseContext function normally releases resources associated with the given handle (including "cardsList") and clients should cease using this handle. A malicious client can however make the daemon invoke SCardReleaseContext and continue issuing other commands that use "cardsList", resulting in a use-after-free.  When SCardReleaseContext is invoked multiple times, it additionally results in a double-free of "cardsList".

References:

http://seclists.org/oss-sec/2017/q1/18
http://lists.alioth.debian.org/pipermail/pcsclite-muscle/Week-of-Mon-20161226/000779.html

Upstream patch:

https://anonscm.debian.org/cgit/pcsclite/PCSC.git/commit/?id=697fe05967af7ea215bcd5d5774be587780c9e22

Comment 1 Andrej Nemec 2017-01-04 12:06:44 UTC

Created pcsc-lite tracking bugs for this issue:

Affects: fedora-all [bug 1410075]