Ubuntu Security Notice USN-903-1

24th February, 2010

openoffice.org vulnerabilities

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

• Ubuntu 9.10
• Ubuntu 9.04
• Ubuntu 8.10
• Ubuntu 8.04 LTS

Software description

• openoffice.org

Details

It was discovered that the XML HMAC signature system did not
correctly check certain lengths. If an attacker sent a truncated
HMAC, it could bypass authentication, leading to potential privilege
escalation. (CVE-2009-0217)

Sebastian Apelt and Frank Reißner discovered that OpenOffice did not
correctly import XPM and GIF images. If a user were tricked into opening
a specially crafted image, an attacker could execute arbitrary code with
user privileges. (CVE-2009-2949, CVE-2009-2950)

Nicolas Joly discovered that OpenOffice did not correctly handle
certain Word documents. If a user were tricked into opening a specially
crafted document, an attacker could execute arbitrary code with user
privileges. (CVE-2009-3301, CVE-2009-3302)

It was discovered that OpenOffice did not correctly handle certain
VBA macros correctly. If a user were tricked into opening a specially
crafted document, an attacker could execute arbitrary macro commands,
bypassing security controls. (CVE-2010-0136)

Update instructions

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

Ubuntu 9.10:

openoffice.org-core 1:3.1.1-5ubuntu1.1

Ubuntu 9.04:

openoffice.org-core 1:3.0.1-9ubuntu3.2

Ubuntu 8.10:

openoffice.org-core 1:2.4.1-11ubuntu2.3

Ubuntu 8.04 LTS:

openoffice.org-core 1:2.4.1-1ubuntu2.3

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system upgrade you need to restart OpenOffice to effect
the necessary changes.

References

CVE-2009-0217, CVE-2009-2949, CVE-2009-2950, CVE-2009-3301, CVE-2009-3302, CVE-2010-0136