Bug 1326800 - brltty: Authentication bypass issue
Summary: brltty: Authentication bypass issue
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1326801
Blocks: 1326802
TreeView+ depends on / blocked
 
Reported: 2016-04-13 12:37 UTC by Adam Mariš
Modified: 2019-09-29 13:47 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-04-14 12:26:59 UTC
Embargoed:

Attachments (Terms of Use)

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.
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