Medium: gnutls

Issue Overview:

A denial of service flaw was found in the way the TLS/SSL protocol defined
processing of ALERT packets during a connection handshake. A remote attacker
could use this flaw to make a TLS/SSL server consume an excessive amount of CPU
and fail to accept connections form other clients. (CVE-2016-8610)

Multiple flaws were found in the way gnutls processed OpenPGP certificates. An
attacker could create specially crafted OpenPGP certificates which, when parsed
by gnutls, would cause it to crash. (CVE-2017-5335, CVE-2017-5336,
CVE-2017-5337)

Affected Packages:

gnutls

Issue Correction:
Run yum update gnutls to update your system.

New Packages:

i686:  
    gnutls-2.12.23-21.18.amzn1.i686  
    gnutls-devel-2.12.23-21.18.amzn1.i686  
    gnutls-guile-2.12.23-21.18.amzn1.i686  
    gnutls-utils-2.12.23-21.18.amzn1.i686  
    gnutls-debuginfo-2.12.23-21.18.amzn1.i686  
  
src:  
    gnutls-2.12.23-21.18.amzn1.src  
  
x86_64:  
    gnutls-guile-2.12.23-21.18.amzn1.x86_64  
    gnutls-debuginfo-2.12.23-21.18.amzn1.x86_64  
    gnutls-devel-2.12.23-21.18.amzn1.x86_64  
    gnutls-utils-2.12.23-21.18.amzn1.x86_64  
    gnutls-2.12.23-21.18.amzn1.x86_64  

Additional References

Red Hat: CVE-2016-8610, CVE-2017-5335, CVE-2017-5336, CVE-2017-5337

Mitre: CVE-2016-8610, CVE-2017-5335, CVE-2017-5336, CVE-2017-5337