Ubuntu Security Notice USN-1495-1
2nd July, 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 version:
- Ubuntu 11.10:
- libreoffice-l10n-common 1:3.4.4-0ubuntu1.2
- libreoffice-core 1:3.4.4-0ubuntu1.2
- Ubuntu 11.04:
- libreoffice-l10n-common 1:3.3.3-1ubuntu1.2
- libreoffice-core 1:3.3.4-0ubuntu1.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart LibreOffice to make all
the necessary changes.