Updated vorbis-tools package fixes security vulnerabilities:
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 (CVE-2014-9638).
Integer overflow in oggenc in vorbis-tools 1.4.0 allows remote attackers to cause a denial of service (crash) via a crafted number of channels in a WAV file, which triggers an out-of-bounds memory access (CVE-2014-9639).