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Posted to commits@openoffice.apache.org by bu...@apache.org on 2016/07/20 21:22:02 UTC
svn commit: r993233 - in /websites/staging/ooo-site/trunk: cgi-bin/ content/
content/security/cves/CVE-2016-1513.html
Author: buildbot
Date: Wed Jul 20 21:22:02 2016
New Revision: 993233
Log:
Staging update by buildbot for ooo-site
Added:
websites/staging/ooo-site/trunk/content/security/cves/CVE-2016-1513.html
Modified:
websites/staging/ooo-site/trunk/cgi-bin/ (props changed)
websites/staging/ooo-site/trunk/content/ (props changed)
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--- websites/staging/ooo-site/trunk/content/security/cves/CVE-2016-1513.html (added)
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+<!--#include virtual="/doctype.html" -->
+<html>
+<head>
+<link href="/css/ooo.css" rel="stylesheet" type="text/css">
+
+ <title>CVE-2016-1513</title>
+ <style type="text/css"></style>
+
+<!--#include virtual="/google-analytics.js" -->
+<!--#include virtual="/scripts/entourage.js" -->
+</head>
+<body>
+<!--#include virtual="/brand.html" -->
+ <div id="topbara">
+ <!--#include virtual="/topnav.html" -->
+ <div id="breadcrumbsa"><a href="/">home</a> » <a href="/security/">security</a> » <a href="/security/cves/">cves</a></div>
+ </div>
+ <div id="clear"></div>
+
+
+ <div id="content">
+
+
+
+ <!-- These were previously defined as XHTML pages. The current wrapping for the site
+ introduces HTML5 headers and formats. This version is modified to match the
+ wrapping that is done as part of publishing this page and not rely on any
+ particular styling beyond <p>.
+ -->
+
+ <p>
+ <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2016-1513">
+ CVE-2016-1513</a>
+ </p>
+
+ <p>
+ <a href="http://www.openoffice.org/security/cves/CVE-2016-1513.html">
+ Apache OpenOffice Advisory</a>
+ </p>
+
+ <p>
+ <strong>Memory Corruption Vulnerability (Impress Presentations)</strong>
+ </p>
+
+ <p>
+ <strong>Version 1.0</strong>
+ </p>
+
+ <p>
+ Announced July 21, 2016
+ </p>
+
+ <p>
+ <strong>Summary</strong>
+ </p>
+
+ <p>
+ An OpenDocument Presentation .ODP or Presentation Template .OTP file can contain invalid presentation elements that lead to memory corruption when the document is loaded in Apache OpenOffice Impress. The defect may cause the document to appear as corrupted and OpenOffice may crash in a recovery-stuck mode requiring manual intervention. A crafted exploitation of the defect can allow an attacker to cause denial of service (memory corruption and application crash) and possible execution of arbitrary code.
+ </p>
+
+ <p>
+ <strong>Severity: Medium</strong>
+ </p>
+
+ <p>There are no known exploits of this vulnerabilty.<br />
+ A proof-of-concept demonstration exists.
+ </p>
+
+ <p>
+ <strong>Vendor: The Apache Software Foundation</strong>
+ </p>
+
+ <p>
+ <strong>Versions Affected</strong>
+ </p>
+
+ <p>
+ All Apache OpenOffice versions 4.1.2 and older are affected.<br />
+ OpenOffice.org versions are also affected.
+ </p>
+
+ <p>
+ <strong>Mitigation</strong>
+ </p>
+
+ <p>
+ There is no updated download currently available to mitigate this vulnerability. Until a hot fix or maintenance release is available, users should be vigilant and employ workarounds.
+ <br /><br />
+ A source-code patch that blocks the vulnerability has been developed and is available for developers at <a href="https://bz.apache.org/ooo/show_bug.cgi?id=127045">issue 127045</a>.
+ <br /><br />
+ Antivirus can detect documents attempting to exploit this vulnerability by employing Snort Signature IDs 35828-35829.
+ </p>
+
+ <p>
+ <strong>Description</strong>
+ </p>
+
+ <p>
+ An OpenDocument Presentation .ODP or Presentation Template .OTP file can contain invalid presentation elements that lead to memory corruption when the document is loaded in Apache OpenOffice Impress. The defect may cause the document to appear as corrupted. OpenOffice may simply close or crash, possibly in a recovery-stuck mode requiring manual intervention, including removal of any document lock.
+ <br /><br />
+ A crafted exploitation of the vulnerability can allow an attacker to cause denial of service (memory corruption and application crash) and possible execution of arbitrary code.
+ </p>
+
+ <p>
+ <strong>Defenses and Work-Arounds</strong>
+ </p>
+
+ <p>
+ For defects such as those involved in CVE-2016-1513, documents can be crafted to cause memory corruption enough to crash Apache OpenOffice Impress. However, the conditions under which arbitrary code can be executed are complex and difficult to achieve in an undetected manner.
+ <br /><br />
+ An important layer of defense for all such cases is to avoid operating Apache OpenOffice (and any other personal productivity programs) under a computer account that has administrative privileges of any kind. While installation of Apache OpenOffice requires elevated privileges and user permission on platforms such as Microsoft Windows, operation of the software does not.
+ <br /><br />
+ Keeping antivirus/antimalware software current is also important. This will serve to identify and distinguish suspicious documents that involve the exploit, avoiding confusion with documents that are damaged and/or fail for other reasons.
+ <br /><br />
+ Impress cannot be used to directly produce documents having the CVE-2016-1513-related defect. Impress-authored .ODP and .OTP documents of an user's own that exhibit any of these characteristics are not the result of an exploit. They may be consequences of a separate Impress defect that should be reported.
+ <br /><br />
+ For .ODP and .OTP files from unknown or suspicious sources, any automatic closing on opening or failing of OpenOffice Impress can be checked by opening the file in an OpenDocument Presentation application that is not vulnerable to the defective document formatting involved in CVE-2016-1513. Current releases of LibreOffice and Microsoft Office PowerPoint (for .ODP files), including PowerPoint Online, are known to avoid the defect. Other ODF-supporting software may be successful. The resulting presentation may appear corrupted or incomplete and need not reflect an actual exploit attempt. Saving the document as a new presentation file will be exploit-free either way.
+ <br /><br />
+ To report a suspicious document from an external source and for which OpenOffice Impress crashes, preserve the file exactly and report to <a href="mailto:security@openoffice.apache.org">security@openoffice.apache.org</a>. Await further instructions for submission of the file itself. Do not post files having suspected exploits to mailing lists, the issue-reporting system, or any other public location.
+ <br /><br />
+ For additional information and assistance, consult the <a href="https://forum.openoffice.org/">Apache OpenOffice Community Forums</a>, or make requests to the <a href="mailto:users@openoffice.apache.org">users@openoffice.apache.org</a> public mailing list. Defects not involving suspected security vulnerabilities can be reported with a normal issue via <a href="http://www.openoffice.org/qa/issue_handling/pre_submission.html">Bugzilla</a>.
+ </p>
+
+ <p>
+ <strong>Precautions</strong>
+ </p>
+
+ <p>
+ Users who do not upgrade to Apache OpenOffice 4.1.2 should be careful of .DOC files from unknown or unreliable sources. A Microsoft Word 97-2003 .DOC format file can be checked by opening with software, such as Microsoft Office Word or Word Online. The documents may be rejected as corrupted or extraordinary employment of bookmarks may be observable.
+ </p>
+
+ <p>
+ <strong>Further Information</strong>
+ </p>
+
+ <p>For additional information and assistance, consult the
+ <a href="https://forum.openoffice.org/">Apache OpenOffice Community Forums</a>
+ or make requests to the
+ <a href="mailto:users@openofffice.apache.org">users@openofffice.apache.org</a>
+ public mailing list.
+ </p>
+
+ <p>
+ The latest information on Apache OpenOffice security bulletins can be found at the <a href="http://www.openoffice.org/security/bulletin.html">
+ Bulletin Archive page</a>.
+ </p>
+
+ <p>
+ <strong>Credits</strong>
+ </p>
+
+ <p>
+ The Apache OpenOffice project acknowledges the discovery and analysis for CVE-2016-1513 by Yves Younan and Richard Johnson of Cisco Talos.
+ </p>
+
+ <hr />
+
+ <p>
+ <a href="http://www.openoffice.org/security/">Security Home</a>
+ -> <a href="http://www.openoffice.org/security/bulletin.html">
+ Bulletin</a>
+ -> <a href="http://www.openoffice.org/security/cves/CVE-2016-1513.html">
+ CVE-2016-1513</a>
+ </p>
+
+
+ </div>
+<!--#include virtual="/footer.html" -->
+</body>
+</html>