Heap-based buffer overflow in Impress in OpenOffice.org (OOo) 2.x and 3.x before 3.3 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PNG file in an ODF or Microsoft Office document, as demonstrated by a PowerPoint (aka PPT) document.
https://bugzilla.redhat.com/show_bug.cgi?id=658259
http://www.oracle.com/technetwork/topics/security/cpuapr2011-301950.html
http://www.openoffice.org/security/cves/CVE-2010-4253.html
http://www.gentoo.org/security/en/glsa/glsa-201408-19.xml