branch security-updates updated (c68e41c -> 668d896)

[Mark H. Weaver]

mhw pushed a change to branch security-updates
in repository guix.

      from  c68e41c   gnu: libxslt: Add fix for CVE-2015-7995.
       new  668d896   gnu: libsndfile: Add fixes for CVE-2014-9496 and 
CVE-2015-7805.

The 1 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 gnu-system.am                                      |    2 +
 .../patches/libsndfile-CVE-2014-9496.patch         |   55 ++++++++++++
 .../patches/libsndfile-CVE-2015-7805.patch         |   93 ++++++++++++++++++++
 gnu/packages/pulseaudio.scm                        |    5 +-
 4 files changed, 154 insertions(+), 1 deletions(-)
 create mode 100644 gnu/packages/patches/libsndfile-CVE-2014-9496.patch
 create mode 100644 gnu/packages/patches/libsndfile-CVE-2015-7805.patch