Ubuntu Security Notice USN-121-1 – The StgCompObjStream::Load() failed to check the validity of a length field in documents. If an attacker tricked a user to open a specially crafted OpenOffice file, this triggered a buffer overflow which could lead to arbitrary code execution with the privileges of the user opening the document.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/39094/USN-121-1.txt
Source: https://packetstormsecurity.com/files/39094/Ubuntu-Security-Notice-121-1.html