Important: bind

Issue Overview:

A flaw was discovered in the way BIND handled certain DNS queries, which caused it to cache an invalid record. A remote attacker could use this flaw to send repeated queries for this invalid record, causing the resolvers to exit unexpectedly due to a failed assertion.

Affected Packages:

bind

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

New Packages:

i686:  
    bind-9.7.3-2.11.amzn1.i686  
    bind-debuginfo-9.7.3-2.11.amzn1.i686  
    bind-utils-9.7.3-2.11.amzn1.i686  
    bind-sdb-9.7.3-2.11.amzn1.i686  
    bind-chroot-9.7.3-2.11.amzn1.i686  
    bind-libs-9.7.3-2.11.amzn1.i686  
    bind-devel-9.7.3-2.11.amzn1.i686  
  
src:  
    bind-9.7.3-2.11.amzn1.src  
  
x86_64:  
    bind-libs-9.7.3-2.11.amzn1.x86_64  
    bind-devel-9.7.3-2.11.amzn1.x86_64  
    bind-9.7.3-2.11.amzn1.x86_64  
    bind-debuginfo-9.7.3-2.11.amzn1.x86_64  
    bind-chroot-9.7.3-2.11.amzn1.x86_64  
    bind-sdb-9.7.3-2.11.amzn1.x86_64  
    bind-utils-9.7.3-2.11.amzn1.x86_64  

Additional References

Red Hat: CVE-2011-4313

Mitre: CVE-2011-4313