Important: libxml2

Issue Overview:

A heap-based buffer overflow flaw was found in the way libxml2 parsed certain crafted XML input. A remote attacker could provide a specially crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or execute arbitrary code with the permissions of the user running the application. (CVE-2016-1834, CVE-2016-1840)

Multiple denial of service flaws were found in libxml2. A remote attacker could provide a specially crafted XML file that, when processed by an application using libxml2, could cause that application to crash. (CVE-2016-1762, CVE-2016-1833, CVE-2016-1835, CVE-2016-1836, CVE-2016-1837, CVE-2016-1838, CVE-2016-1839, CVE-2016-3627, CVE-2016-3705, CVE-2016-4447, CVE-2016-4448, CVE-2016-4449)

Affected Packages:

libxml2

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

New Packages:

i686:  
    libxml2-debuginfo-2.9.1-6.3.49.amzn1.i686  
    libxml2-python27-2.9.1-6.3.49.amzn1.i686  
    libxml2-2.9.1-6.3.49.amzn1.i686  
    libxml2-static-2.9.1-6.3.49.amzn1.i686  
    libxml2-python26-2.9.1-6.3.49.amzn1.i686  
    libxml2-devel-2.9.1-6.3.49.amzn1.i686  
  
src:  
    libxml2-2.9.1-6.3.49.amzn1.src  
  
x86_64:  
    libxml2-static-2.9.1-6.3.49.amzn1.x86_64  
    libxml2-2.9.1-6.3.49.amzn1.x86_64  
    libxml2-debuginfo-2.9.1-6.3.49.amzn1.x86_64  
    libxml2-python26-2.9.1-6.3.49.amzn1.x86_64  
    libxml2-python27-2.9.1-6.3.49.amzn1.x86_64  
    libxml2-devel-2.9.1-6.3.49.amzn1.x86_64  

Additional References

Red Hat: CVE-2016-1762, CVE-2016-1833, CVE-2016-1834, CVE-2016-1835, CVE-2016-1836, CVE-2016-1837, CVE-2016-1838, CVE-2016-1839, CVE-2016-1840, CVE-2016-3627, CVE-2016-3705, CVE-2016-4447, CVE-2016-4448, CVE-2016-4449

Mitre: CVE-2016-1762, CVE-2016-1833, CVE-2016-1834, CVE-2016-1835, CVE-2016-1836, CVE-2016-1837, CVE-2016-1838, CVE-2016-1839, CVE-2016-1840, CVE-2016-3627, CVE-2016-3705, CVE-2016-4447, CVE-2016-4448, CVE-2016-4449