Important: bind

Issue Overview:

A denial of service flaw was found in the way BIND handled a query response containing CNAME or DNAME resource records in an unusual order. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS response. (CVE-2017-3137)

A denial of service flaw was found in the way BIND handled query requests when using DNS64 with “break-dnssec yes” option. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS request. (CVE-2017-3136)

Upstream acknowledges Oleg Gorokhov (Yandex) as the original reporter of CVE-2017-3136.

Affected Packages:

bind

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

New Packages:

i686:  
    bind-sdb-9.8.2-0.62.rc1.54.amzn1.i686  
    bind-9.8.2-0.62.rc1.54.amzn1.i686  
    bind-debuginfo-9.8.2-0.62.rc1.54.amzn1.i686  
    bind-devel-9.8.2-0.62.rc1.54.amzn1.i686  
    bind-utils-9.8.2-0.62.rc1.54.amzn1.i686  
    bind-libs-9.8.2-0.62.rc1.54.amzn1.i686  
    bind-chroot-9.8.2-0.62.rc1.54.amzn1.i686  
  
src:  
    bind-9.8.2-0.62.rc1.54.amzn1.src  
  
x86_64:  
    bind-devel-9.8.2-0.62.rc1.54.amzn1.x86_64  
    bind-sdb-9.8.2-0.62.rc1.54.amzn1.x86_64  
    bind-debuginfo-9.8.2-0.62.rc1.54.amzn1.x86_64  
    bind-chroot-9.8.2-0.62.rc1.54.amzn1.x86_64  
    bind-utils-9.8.2-0.62.rc1.54.amzn1.x86_64  
    bind-libs-9.8.2-0.62.rc1.54.amzn1.x86_64  
    bind-9.8.2-0.62.rc1.54.amzn1.x86_64  

Additional References

Red Hat: CVE-2017-3136, CVE-2017-3137

Mitre: CVE-2017-3136, CVE-2017-3137