Bug 1140527 – CVE-2014-3637 dbus: denial of service by creating unkillable D-Bus connections

Bug 1140527 - (CVE-2014-3637) CVE-2014-3637 dbus: denial of service by creating unkillable D-Bus connections

Summary:	CVE-2014-3637 dbus: denial of service by creating unkillable D-Bus connections

Status:	CLOSED WONTFIX

Aliases:	CVE-2014-3637

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20140916,reported=2...
Keywords:	Security

Depends On:	1142581 1142582 1142583
Blocks:	1140534
	Show dependency tree / graph

Reported:	2014-09-11 03:59 EDT by Murray McAllister
Modified:	2015-01-05 03:34 EST (History)
CC List:	5 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2014-12-12 18:54:47 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
initial upstream patch 1 (5.87 KB, patch) 2014-09-11 04:36 EDT, Murray McAllister	no flags	Details \| Diff
initial upstream patch 2 (4.76 KB, patch) 2014-09-11 04:37 EDT, Murray McAllister	no flags	Details \| Diff
initial upstream patch 3 (8.21 KB, patch) 2014-09-11 04:39 EDT, Murray McAllister	no flags	Details \| Diff
initial upstream patch 4 (4.69 KB, patch) 2014-09-11 04:40 EDT, Murray McAllister	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Murray McAllister 2014-09-11 03:59:12 EDT

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 04:36:47 EDT

Created attachment 936438 [details]
initial upstream patch 1

Comment 3 Murray McAllister 2014-09-11 04:37:59 EDT

Created attachment 936439 [details]
initial upstream patch 2

Comment 4 Murray McAllister 2014-09-11 04:39:26 EDT

Created attachment 936441 [details]
initial upstream patch 3

Comment 5 Murray McAllister 2014-09-11 04:40:48 EDT

Created attachment 936442 [details]
initial upstream patch 4

Comment 6 Murray McAllister 2014-09-17 01:12:20 EDT

Created dbus tracking bugs for this issue:

Affects: fedora-all [bug 1142581]

Comment 7 Murray McAllister 2014-09-17 01:12:22 EDT

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 01:17:01 EDT

Public now:

http://www.openwall.com/lists/oss-security/2014/09/16/9

Comment 9 Fedora Update System 2014-12-13 04:47:36 EST

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 2014-12-16 23:46:49 EST

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 13:26:19 EST

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.

Note You need to log in before you can comment on or make changes to this bug.