Bug 1140527 (CVE-2014-3637)

Summary: CVE-2014-3637 dbus: denial of service by creating unkillable D-Bus connections
Product: [Other] Security Response Reporter: Murray McAllister <mmcallis>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: jrusnack, rhughes, security-response-team, vdanen, walters
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: 2014-12-12 23:54:47 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: 1142581, 1142582, 1142583    
Bug Blocks: 1140534    
Attachments:
Description Flags
initial upstream patch 1
none
initial upstream patch 2
none
initial upstream patch 3
none
initial upstream patch 4 none

Description Murray McAllister 2014-09-11 07:59:12 UTC 
D-Bus upstream reports:

""
By attaching the file descriptor of a D-Bus connection to a D-Bus
message and sending that message via the dbus-daemon, a malicious
process can create D-Bus connections that persist after the process that
created them has terminated. This exacerbates various patterns of
undesirable/abusive behaviour by making it impossible to terminate them
by killing processes.

This has been addressed by closing any connection that has incoming file
descriptors queued for deserialization for more than a configurable
timeout, defaulting to 2.5 minutes.
""

It is believed that versions 1.3.0 and later are affected.

Acknowledgements:

Red Hat would like to thank D-Bus upstream for reporting this issue. Upstream acknowledges Alban Crequy as the original reporter.
Comment 2 Murray McAllister 2014-09-11 08:36:47 UTC 
Created attachment 936438 [details]
initial upstream patch 1
Comment 3 Murray McAllister 2014-09-11 08:37:59 UTC 
Created attachment 936439 [details]
initial upstream patch 2
Comment 4 Murray McAllister 2014-09-11 08:39:26 UTC 
Created attachment 936441 [details]
initial upstream patch 3
Comment 5 Murray McAllister 2014-09-11 08:40:48 UTC 
Created attachment 936442 [details]
initial upstream patch 4
Comment 6 Murray McAllister 2014-09-17 05:12:20 UTC 
Created dbus tracking bugs for this issue:

Affects: fedora-all [bug 1142581]
Comment 7 Murray McAllister 2014-09-17 05:12:22 UTC 
Created mingw-dbus tracking bugs for this issue:

Affects: fedora-all [bug 1142582]
Affects: epel-7 [bug 1142583]
Comment 8 Murray McAllister 2014-09-17 05:17:01 UTC 
Public now:

http://www.openwall.com/lists/oss-security/2014/09/16/9
Comment 9 Fedora Update System 2014-12-13 09:47:36 UTC 
dbus-1.6.28-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 10 Fedora Update System 2014-12-17 04:46:49 UTC 
dbus-1.8.12-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 11 Fedora Update System 2014-12-19 18:26:19 UTC 
dbus-1.6.28-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.