Medium: libxml2

Issue Overview:

It was found that the hashing routine used by libxml2 arrays was susceptible to predictable hash collisions. Sending a specially-crafted message to an XML service could result in longer processing time, which could lead to a denial of service. To mitigate this issue, randomization has been added to the hashing function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2012-0841)

Affected Packages:

libxml2

Issue Correction:
Run yum update libxml2 to update your system.

New Packages:

i686:  
    libxml2-python-2.7.6-4.12.amzn1.i686  
    libxml2-debuginfo-2.7.6-4.12.amzn1.i686  
    libxml2-devel-2.7.6-4.12.amzn1.i686  
    libxml2-2.7.6-4.12.amzn1.i686  
    libxml2-static-2.7.6-4.12.amzn1.i686  
  
src:  
    libxml2-2.7.6-4.12.amzn1.src  
  
x86_64:  
    libxml2-devel-2.7.6-4.12.amzn1.x86_64  
    libxml2-2.7.6-4.12.amzn1.x86_64  
    libxml2-python-2.7.6-4.12.amzn1.x86_64  
    libxml2-debuginfo-2.7.6-4.12.amzn1.x86_64  
    libxml2-static-2.7.6-4.12.amzn1.x86_64  

Additional References

Red Hat: CVE-2012-0841

Mitre: CVE-2012-0841