This update for gnutls fixes the following issues:
- GNUTLS-SA-2017-3 / CVE-2017-7869: An out-of-bounds write in OpenPGP certificate decoding was fixed (bsc#1034173)
- CVE-2017-6891: A potential stack buffer overflow in the bundled libtasn1 was fixed (bsc#1040621)
- An address read of 4 bytes past the end of buffer in OpenPGP certificate parsing was fixed (bsc#1038337)