Bug 1569840 – CVE-2018-10120 libreoffice: Out of bounds write in filter/ww8/ww8toolbar.cxx:SwCTBWrapper class allows for denial of service with crafted document

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Bug 1569840 - (CVE-2018-10120) CVE-2018-10120 libreoffice: Out of bounds write in filter/ww8/ww8toolbar.cxx:SwCTBWrapper class allows for denial of service with crafted document

Summary:	CVE-2018-10120 libreoffice: Out of bounds write in filter/ww8/ww8toolbar.cxx:...

Status:	NEW

Aliases:	CVE-2018-10120

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=20180209,repor...
Keywords:	Security

Depends On:	1570490 1569841 1570491
Blocks:	1569842
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Reported:	2018-04-20 01:16 EDT by Sam Fowler
Modified:	2018-10-30 03:25 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:	libreoffice 5.4.6.1, libreoffice 6.0.2.1
Doc Type:	If docs needed, set a value
Doc Text:
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Last Closed:
Type:	---
Regression:	---
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CRM:
Verified Versions:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:3054	None	None	None	2018-10-30 03:25 EDT

Groups: None (edit)

Description Sam Fowler 2018-04-20 01:16:16 EDT

LibreOffice before versions 5.4.6.1 and 6.0.2.1 has a missing bounds check in sw/source/filter/ww8/ww8toolbar.cxx:SwCTBWrapper::Read() allowing for an out of bounds write. An attacker could exploit this to cause a denial of service via crafted document.


External Reference:

https://www.libreoffice.org/about-us/security/advisories/cve-2018-10120/


Additional Reference:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6173


Upstream Patches:

https://gerrit.libreoffice.org/gitweb?p=core.git;a=commit;h=017fcc2fcd00af17a97bd5463d89662404f57667
https://gerrit.libreoffice.org/#/c/49486/
https://gerrit.libreoffice.org/#/c/49499/
https://gerrit.libreoffice.org/#/c/49500/

Comment 1 Sam Fowler 2018-04-20 01:16:42 EDT

Created libreoffice tracking bugs for this issue:

Affects: fedora-all [bug 1569841]

Comment 4 errata-xmlrpc 2018-10-30 03:25:33 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3054 https://access.redhat.com/errata/RHSA-2018:3054

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