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
LibreOffice could be made to crash or potentially run programs as your login if it opened a specially crafted file.
- libreoffice - Office productivity suite
- libreoffice-l10n - Office productivity suite help
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
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.
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.