Bug 1326800

Summary:	brltty: Authentication bypass issue
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anemec, gwync, jskarvad
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-04-14 12:26:59 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:	1326801
Bug Blocks:	1326802

Description Adam Mariš 2016-04-13 12:37:55 UTC

An authentication bypass issue was found in brltty that is using polkit to control access to system resources using PID of the process connecting to the server socket.

CVE request:

http://seclists.org/oss-sec/2016/q2/59

Comment 1 Adam Mariš 2016-04-13 12:38:12 UTC

Created brltty tracking bugs for this issue:

Affects: fedora-all [bug 1326801]

Comment 2 Jaroslav Škarvada 2016-04-13 14:27:59 UTC

It seems there is patch proposed:
https://bugzilla.suse.com/show_bug.cgi?id=967436

which is currently tested upstream. This issue doesn't seem serious, so I will wait for upstream.

Comment 3 Andrej Nemec 2016-04-13 14:33:05 UTC

Mitre responded but did not assign a CVE yet.

http://seclists.org/oss-sec/2016/q2/67

Comment 4 Jaroslav Škarvada 2016-04-14 10:30:50 UTC

It seems the code with the bug wasn't released in Fedora. There is brltty-5.3.1 in Rawhide and the bug was introduced in the upstream devel git after the release.

I.e. this is the commit introducing the bug:
https://github.com/brltty/brltty/commit/e62b3c925d03239a372d425fb87b2cac65d8ef19

Comment 5 Tomas Hoger 2016-04-14 12:26:59 UTC

Similar applies to brltty packages in Red Hat Enterprise Linux.