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[tdf-announce] The Document Foundation publishes details of LibreOffice 3.4.3 security fixes


The Internet, October 4, 2011 - The Document Foundation (TDF) publishes
some details of the security fixes included with the recently released
LibreOffice 3.4.3, and included in the older 3.3.4 version. Following
industry best practice, details of security fixes are withheld until
users have been given time to migrate to the new version.

RedHat security researcher Huzaifa Sidhpurwala identified a memory
corruption vulnerability in the code responsible for loading Microsoft
Word documents in LibreOffice. This flaw could have been used for
nefarious purposes, such as installing viruses, through a
specially-crafted file. The corresponding vulnerability description is
CVE-2011-2713,"Out-of-bounds property read in binary .doc filter".

LibreOffice 3.4.3 also includes various improvements to the loading of
Windows Metafile (.wmf) and Windows Enhanced Metafile (.emf) image
formats that were found through fuzz testing.

LibreOffice developers have developed some additional security patches
and fixes. These are part of a general set of development improvements
which are reflected in the overall quality and stability of the
software. Most LibreOffice 3.4.3 security fixes have been developed by
Caolan McNamara of RedHat and Marc-André Laverdière of Tata Consultancy
Services.

"Working on fuzzing LibreOffice import filters has been a great
experience, and I am glad I could contribute in securing the computing
experience of millions of users," said Marc-André Laverdière, Scientist,
TCS Innovation Labs, Tata Consultancy Services, Ltd. "Working in
cooperation with the TDF development team, we have found and fixed
serious security and crasher bugs."

All users are recommended to upgrade to LibreOffice 3.4.3 as soon as
possible, in order to benefit from the improved security of the office
suite. LibreOffice 3.4.3 can be downloaded from http://www.libreoffice.org.

Short link to blog post: http://wp.me/p1byPE-bQ

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Italo Vignoli - The Document Foundation
email italo.vignoli@documentfoundation.org
phone +39.348.5653829 - VoIP +39.02.320621813
skype italovignoli - italo.vignoli@gmail.com

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