oggenc in vorbis-tools 1.4.0 allows remote attackers to cause a denial of service (divide-by-zero error and crash) via a WAV file with the number of channels set to zero.
lists.fedoraproject.org/pipermail/package-announce/2015-February/150543.html
lists.fedoraproject.org/pipermail/package-announce/2015-February/150570.html
lists.opensuse.org/opensuse-updates/2015-03/msg00054.html
seclists.org/fulldisclosure/2015/Jan/78
www.openwall.com/lists/oss-security/2015/01/21/5
www.openwall.com/lists/oss-security/2015/01/22/9
www.securityfocus.com/bid/72290
trac.xiph.org/ticket/2137