Bug 1140523 (CVE-2014-3635) - CVE-2014-3635 dbus: heap-based buffer overflow flaw in file descriptor passing
Summary: CVE-2014-3635 dbus: heap-based buffer overflow flaw in file descriptor passing
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2014-3635
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: 1142581 1142582 1142583
Blocks: 1140534
TreeView+ depends on / blocked
 
Reported: 2014-09-11 07:52 UTC by Murray McAllister
Modified: 2022-07-14 09:49 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-12-12 23:53:44 UTC

Attachments (Terms of Use)
initial patch from upstream (4.24 KB, patch)
2014-09-11 08:28 UTC, Murray McAllister 		no flags Details | Diff
silence a compiler warning in the previous patch (1.62 KB, patch)
2014-09-11 08:30 UTC, Murray McAllister 		no flags Details | Diff
regression test (28.93 KB, patch)
2014-09-11 08:32 UTC, Murray McAllister 		no flags Details | Diff
View All

Description Murray McAllister 2014-09-11 07:52:03 UTC 
A heap-based buffer overflow flaw was reported in D-Bus's file descriptor passing. On 64-bit systems, if the max_message_unix_fds limit was set to an odd number, a local, malicious user could send one more file descriptor than expected. This would cause the dbus-daemon to crash or, potentially, execute arbitrary code.

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 Simon McVittie as the original reporter.
Comment 2 Murray McAllister 2014-09-11 08:28:04 UTC 
Created attachment 936433 [details]
initial patch from upstream
Comment 3 Murray McAllister 2014-09-11 08:30:22 UTC 
Created attachment 936434 [details]
silence a compiler warning in the previous patch
Comment 4 Murray McAllister 2014-09-11 08:32:18 UTC 
Created attachment 936435 [details]
regression test
Comment 5 Murray McAllister 2014-09-17 05:10:44 UTC 
Created dbus tracking bugs for this issue:

Affects: fedora-all [bug 1142581]
Comment 6 Murray McAllister 2014-09-17 05:10:47 UTC 
Created mingw-dbus tracking bugs for this issue:

Affects: fedora-all [bug 1142582]
Affects: epel-7 [bug 1142583]
Comment 7 Murray McAllister 2014-09-17 05:16:33 UTC 
Public now:

http://www.openwall.com/lists/oss-security/2014/09/16/9
Comment 8 Fedora Update System 2014-12-13 09:47:43 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 9 Fedora Update System 2014-12-17 04:46:47 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 10 Fedora Update System 2014-12-19 18:26:31 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.
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