Bugzilla – Full Text Bug Listing
|Summary:||VUL-0: CVE-2014-0791: freerdp: integer overflow|
|Product:||[Novell Products] SUSE Security Incidents||Reporter:||Alexander Bergmann <abergmann>|
|Component:||Incidents||Assignee:||Felix Zhang <fezhang>|
|Status:||RESOLVED FIXED||QA Contact:||Security Team bot <security-team>|
|Priority:||P3 - Medium||CC:||abergmann, jsegitz|
|Found By:||Security Response Team||Services Priority:|
|Marketing QA Status:||---||IT Deployment:||---|
Description Alexander Bergmann 2014-01-06 08:42:29 UTC
OSS:11786 The function in question is in the client code for the Remote Desktop Protocol Licensing Extension described on the http://msdn.microsoft.com/en-us/library/cc241880.aspx web page. The code is part of the reading of a Server License Request packet. The integer overflow affects a malloc argument. After this, the client would normally make separate malloc calls and write (a potentially very large amount of) data from the server into that separately malloced memory. Effects depend on the malloc implementation and the architecture. Even if code execution were essentially impossible, other conceivable security impacts exist. For example, the client might later send unintended private information (license data for a different server?) over the connection to the current server. http://en.wikipedia.org/wiki/Comparison_of_remote_desktop_software says "Multiple sessions ... Yes" but we don't know whether that refers to FreeRDP 1.x or FreeRDP 0.x (which is a different codebase and allowed the user to start multiple sessions with a single command as described in the http://sourceforge.net/mailarchive/message.php?msg_id=24558104 post). If one server can send a crafted Server License Request packet that causes memory corruption and leads to a crash of multiple sessions, a CVE ID can be assigned. (The crash could perhaps not happen immediately, and instead happen after the user established important state in a session to a non-malicious server.) Even without that, a CVE ID seems probably worthwhile for the largely unpredictable client behavior after the erroneous malloc call. Use CVE-2014-0791. References: https://bugzilla.redhat.com/show_bug.cgi?id=998941 http://comments.gmane.org/gmane.comp.security.oss.general/11786
Comment 1 Swamp Workflow Management 2014-01-06 23:00:25 UTC
bugbot adjusting priority
Comment 2 Lance Wang 2014-01-07 03:32:57 UTC
Hi David Assign it to you.
Comment 3 Alexander Bergmann 2014-04-15 08:22:41 UTC
Comment 4 Alexander Bergmann 2014-04-15 08:28:34 UTC
It looks like version 0.8.2 is not affected by this. Felix, could you please verify.
Comment 6 Thomas Biege 2014-06-22 10:42:07 UTC
Felix, can you have a look at this please. Thank you.
Comment 12 Felix Zhang 2014-06-24 03:52:49 UTC
Fix checked in SUSE:SLE-12:GA.
Comment 13 Bernhard Wiedemann 2014-06-24 12:00:11 UTC
This is an autogenerated message for OBS integration: This bug (857491) was mentioned in https://build.opensuse.org/request/show/238487 12.3 / freerdp https://build.opensuse.org/request/show/238488 13.1 / freerdp
Comment 14 Felix Zhang 2014-06-25 06:26:05 UTC
Fix checked in X11:RemoteDesktop and openSUSE:Factory. Mark this as fixed.
Comment 15 Swamp Workflow Management 2014-07-01 12:04:25 UTC
openSUSE-SU-2014:0862-1: An update that fixes two vulnerabilities is now available. Category: security (moderate) Bug References: 857491,880317 CVE References: CVE-2014-0250,CVE-2014-0791 Sources used: openSUSE 13.1 (src): freerdp-1.0.2-3.4.1 openSUSE 12.3 (src): freerdp-1.0.2-11.12.1
Comment 18 Swamp Workflow Management 2016-09-27 19:10:38 UTC
openSUSE-SU-2016:2400-1: An update that fixes two vulnerabilities is now available. Category: security (moderate) Bug References: 829013,857491 CVE References: CVE-2013-4118,CVE-2014-0791 Sources used: openSUSE 13.2 (src): freerdp-1.0.2-8.3.1
Comment 19 Swamp Workflow Management 2016-09-27 19:11:25 UTC
openSUSE-SU-2016:2402-1: An update that fixes two vulnerabilities is now available. Category: security (moderate) Bug References: 829013,857491 CVE References: CVE-2013-4118,CVE-2014-0791 Sources used: openSUSE Leap 42.1 (src): freerdp-1.0.2-11.1
Comment 20 Swamp Workflow Management 2016-10-12 13:10:31 UTC
SUSE-SU-2016:2506-1: An update that fixes three vulnerabilities is now available. Category: security (moderate) Bug References: 829013,857491,880317 CVE References: CVE-2013-4118,CVE-2014-0250,CVE-2014-0791 Sources used: SUSE Linux Enterprise Workstation Extension 12-SP1 (src): freerdp-1.0.2-9.1 SUSE Linux Enterprise Software Development Kit 12-SP1 (src): freerdp-1.0.2-9.1 SUSE Linux Enterprise Desktop 12-SP1 (src): freerdp-1.0.2-9.1