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Ubuntu Security Notice USN-1495-1

Ubuntu Security Notice USN-1495-1
Posted Jul 3, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1495-1 - Integer overflows were discovered in the graphics loading code of several different image types. If a user were tricked into opening a specially crafted file, an attacker could cause LibreOffice to crash or possibly execute arbitrary code with the privileges of the user invoking the program. Sven Jacobi discovered an integer overflow when processing Escher graphics records. If a user were tricked into opening a specially crafted PowerPoint file, an attacker could cause LibreOffice to crash or possibly execute arbitrary code with the privileges of the user invoking the program. Various other issues were also addressed.

tags | advisory, overflow, arbitrary
systems | linux, ubuntu
advisories | CVE-2012-1149, CVE-2012-2334, CVE-2012-1149, CVE-2012-2334
SHA-256 | 617a6c43b47fc945fe320c3985b9aff5125c701754e92f77d4b51afa4f2dda8a

Ubuntu Security Notice USN-1495-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1495-1
July 02, 2012

libreoffice, libreoffice-l10n vulnerabilities
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10
- Ubuntu 11.04

Summary:

LibreOffice could be made to crash or potentially run programs as your
login if it opened a specially crafted file.

Software Description:
- libreoffice: Office productivity suite
- libreoffice-l10n: Office productivity suite help

Details:

Integer overflows were discovered in the graphics loading code of several
different image types. If a user were tricked into opening a specially
crafted file, an attacker could cause LibreOffice to crash or possibly
execute arbitrary code with the privileges of the user invoking the
program. (CVE-2012-1149)

Sven Jacobi discovered an integer overflow when processing Escher graphics
records. If a user were tricked into opening a specially crafted PowerPoint
file, an attacker could cause LibreOffice to crash or possibly execute
arbitrary code with the privileges of the user invoking the program.
(CVE-2012-2334)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.10:
libreoffice-core 1:3.4.4-0ubuntu1.2
libreoffice-l10n-common 1:3.4.4-0ubuntu1.2

Ubuntu 11.04:
libreoffice-core 1:3.3.4-0ubuntu1.2
libreoffice-l10n-common 1:3.3.3-1ubuntu1.2

After a standard system update you need to restart LibreOffice to make all
the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1495-1
CVE-2012-1149, CVE-2012-2334

Package Information:
https://launchpad.net/ubuntu/+source/libreoffice/1:3.4.4-0ubuntu1.2
https://launchpad.net/ubuntu/+source/libreoffice-l10n/1:3.4.4-0ubuntu1.2
https://launchpad.net/ubuntu/+source/libreoffice/1:3.3.4-0ubuntu1.2
https://launchpad.net/ubuntu/+source/libreoffice-l10n/1:3.3.3-1ubuntu1.2
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