GnuTLS before 3.3.13 does not validate that the signature algorithms match when importing a certificate.Referenceshttps://bugzilla.redhat.com/show_bug.cgi?id=1196323https://gitlab.com/gnutls/gnutls/commit/6e76e9b9fa845b76b0b9a45f05f4b54a052578ffhttp://www.debian.org/security/2015/dsa-3191
