Bug 1164733 (CVE-2014-3693)

Summary: CVE-2014-3693 libreoffice: Use-After-Free in socket manager of Impress Remote
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: caolanm, dtardon, erack, jgrulich, sbergman
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
A use-after-free flaw was found in the "Remote Control" capabilities of the LibreOffice Impress application. An attacker could use this flaw to remotely execute code with the permissions of the user running LibreOffice Impress.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-20 10:47:07 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: 1164736, 1167503    
Bug Blocks: 1121513, 1160961    

Description Huzaifa S. Sidhpurwala 2014-11-17 09:19:08 UTC 
As per upstream libreoffice advisory:

In LibreOffice 4.0.0 and later, a new feature was added for remote control capabilities in Impress. Users can run a smart phone
application to communicate with Impress over a custom protocol to switch slides and the like. By default whenever Impress is started, it immediately began listening on TCP port 1599 on all interfaces.

But there was a use after free bug in the code managing that port leaving LibreOffice vulnerable to  external attackers with access to that port where those external attackers could cause the deleted port manager to continue to process attacker supplied data.

All users are recommended to upgrade to LibreOffice 4.2.7 or 4.3.3.

The impress remote can be disabled by:

1. Open LibreOffice, go to "Tools -> Options..."
2. Select "LibreOffice Impress -> General"
3. Uncheck "Presentation -> Enable remote control"

External References:

http://www.libreoffice.org/about-us/security/advisories/cve-2014-3693
Comment 2 Murray McAllister 2014-11-24 23:51:11 UTC 
Created libreoffice tracking bugs for this issue:

Affects: fedora-all [bug 1167503]
Comment 3 Huzaifa S. Sidhpurwala 2014-11-26 06:46:17 UTC 
Statement:

This issue affects the versions of libreoffice as shipped with Red Hat Enterprise Linux 6. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue.
Comment 4 Huzaifa S. Sidhpurwala 2014-11-26 06:49:43 UTC 
Upstream patch:

http://cgit.freedesktop.org/libreoffice/core/commit/?h=libreoffice-4-3&id=3d0cffab8d06a0f8af6c0ed7a95728203080a7c5
Comment 5 errata-xmlrpc 2015-03-05 08:51:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0377 https://rhn.redhat.com/errata/RHSA-2015-0377.html