ALAS-2016-719

References: 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 
FAQs regarding Amazon Linux ALAS/CVE Severity

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)

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