Medium: kernel

Issue Overview:

The Netlink implementation in the Linux kernel before 3.2.30 does not properly handle messages that lack SCM_CREDENTIALS data, which might allow local users to spoof Netlink communication via a crafted message, as demonstrated by a message to (1) Avahi or (2) NetworkManager.

Affected Packages:

kernel

Issue Correction:
Run yum update kernel to update your system. You will need to reboot your system in order for the new kernel to be running.

New Packages:

i686:  
    kernel-3.2.28-45.63.amzn1.i686  
    kernel-devel-3.2.28-45.63.amzn1.i686  
    kernel-debuginfo-common-i686-3.2.28-45.63.amzn1.i686  
    kernel-tools-3.2.28-45.63.amzn1.i686  
    kernel-debuginfo-3.2.28-45.63.amzn1.i686  
    kernel-tools-debuginfo-3.2.28-45.63.amzn1.i686  
    kernel-headers-3.2.28-45.63.amzn1.i686  
  
noarch:  
    kernel-doc-3.2.28-45.63.amzn1.noarch  
  
src:  
    kernel-3.2.28-45.63.amzn1.src  
  
x86_64:  
    kernel-tools-3.2.28-45.63.amzn1.x86_64  
    kernel-tools-debuginfo-3.2.28-45.63.amzn1.x86_64  
    kernel-devel-3.2.28-45.63.amzn1.x86_64  
    kernel-debuginfo-3.2.28-45.63.amzn1.x86_64  
    kernel-3.2.28-45.63.amzn1.x86_64  
    kernel-headers-3.2.28-45.63.amzn1.x86_64  
    kernel-debuginfo-common-x86_64-3.2.28-45.63.amzn1.x86_64  

Additional References

Red Hat: CVE-2012-3520

Mitre: CVE-2012-3520