It was discovered that libwmf did not correctly process certain WMF (Windows Metafiles) containing BMP images. By tricking a victim into opening a specially crafted WMF file in an application using libwmf, a remote attacker could possibly use this flaw to execute arbitrary code with the privileges of the user running the application (CVE-2015-0848, CVE-2015-4588).
Two out of bounds reads in libwmf were also discovered, one in the metapencreate() function in player/meta.h (CVE-2015-4695) and one in wmf2gd.c and wmf2eps.c (CVE-2015-4696)