libsndfile: multiple issues

CVE-2014-9496 (unspecified impact)
The sd2_parse_rsrc_fork function in sd2.c in libsndfile allows attackers to
have unspecified impact via vectors related to a (1) map offset or (2) rsrc
marker, which triggers an out-of-bounds read.

CVE-2014-9756 (denial of service)
The psf_fwrite function in file_io.c in libsndfile allows attackers to cause
a denial of service (divide-by-zero error and application crash) via
unspecified vectors related to the headindex variable.

CVE-2015-7805 (unspecified impact)
Heap-based buffer overflow in libsndfile 1.0.25 allows remote attackers to
have unspecified impact via the headindex value in the header in an AIFF
file.