Bug 1351197 – CVE-2016-4324 libreoffice: Dereference of invalid STL iterator on processing RTF file

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Bug 1351197 - (CVE-2016-4324) CVE-2016-4324 libreoffice: Dereference of invalid STL iterator on processing RTF file

Summary:	CVE-2016-4324 libreoffice: Dereference of invalid STL iterator on processing ...

Status:	CLOSED NOTABUG

Aliases:	CVE-2016-4324

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

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

URL:
Whiteboard:	impact=moderate,public=20160628,repor...
Keywords:	Security

Depends On:	1351199 1353839
Blocks:	1351198
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Reported:	2016-06-29 08:45 EDT by Adam Mariš
Modified:	2016-10-20 01:11 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:	libreoffice 5.1.4, libreoffice 5.2.0
Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free vulnerability was found in the Rich Text Format (RTF) document format parser in LibreOffice. By tricking a user into opening a specially crafted RTF document, an attacker could possibly use this flaw to execute arbitrary code with the privileges of the user opening the file.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-07-08 04:42:47 EDT
Type:	---
Regression:	---
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Documentation:	---
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Verified Versions:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Adam Mariš 2016-06-29 08:45:58 EDT

A use after free vulnerability was found in RTF parser of LibreOffice. The vulnerability lies in the parsing of documents containing both stylesheet and superscript tokens. A specially crafted RTF document containing both a stylesheet and superscript element causes LibreOffice to access an invalid pointer referencing previously used memory on the heap. By carefully manipulating the contents of the heap, this vulnerability can be used to execute arbitrary code.

External References:

https://www.libreoffice.org/about-us/security/advisories/cve-2016-4324/
http://blog.talosintel.com/2016/06/vulnerability-spotlight-libreoffice-rtf.html

Comment 1 Adam Mariš 2016-06-29 08:48:48 EDT

Created libreoffice tracking bugs for this issue:

Affects: fedora-23 [bug 1351199]

Comment 2 Fedora Update System 2016-07-05 04:24:11 EDT

libreoffice-5.0.6.2-9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 3 Huzaifa S. Sidhpurwala 2016-07-08 01:50:02 EDT

Upstream patch:

https://cgit.freedesktop.org/libreoffice/core/commit/?id=05cc87ce45fad402445c8d748817e386e56148af

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