The remote Debian host is missing a security-related update.
It was discovered that OpenOffice.org would not properly process crafted document files, possibly leading to arbitrary code execution. - CVE-2012-1149 Integer overflows in PNG image handling. - CVE-2012-2334 Integer overflow in operator new invocation and heap-based buffer overflow inside the MS-ODRAW parser.
Upgrade the openoffice.org packages. For the stable distribution (squeeze), this problem has been fixed in version 1:3.2.1-11+squeeze6.