ALAS-2016-653


Amazon Linux AMI Security Advisory: ALAS-2016-653
Advisory Release Date: 2016-02-16 06:45 Pacific
Severity: Critical
References: CVE-2015-7547 

Issue Overview:

A stack-based buffer overflow flaw was found in the send_dg() and send_vc() functions, used by getaddrinfo() and other higher-level interfaces of glibc. A remote attacker able to cause an application to call either of these functions could use this flaw to execute arbitrary code with the permissions of the user running the application.


Affected Packages:

glibc


Issue Correction:
Run yum update glibc to update your system. Note that you may need to run yum clean all first. Once this update has been applied, reboot your instance to ensure that all processes and daemons that link against glibc are using the updated version. On new instance launches prior to Amazon Linux AMI 2015.09.2, you should still reboot after cloud-init has automatically applied this update.

New Packages:
i686:
    glibc-static-2.17-106.166.amzn1.i686
    glibc-debuginfo-2.17-106.166.amzn1.i686
    glibc-debuginfo-common-2.17-106.166.amzn1.i686
    glibc-headers-2.17-106.166.amzn1.i686
    glibc-2.17-106.166.amzn1.i686
    glibc-common-2.17-106.166.amzn1.i686
    glibc-devel-2.17-106.166.amzn1.i686
    nscd-2.17-106.166.amzn1.i686
    glibc-utils-2.17-106.166.amzn1.i686

src:
    glibc-2.17-106.166.amzn1.src

x86_64:
    glibc-devel-2.17-106.166.amzn1.x86_64
    glibc-utils-2.17-106.166.amzn1.x86_64
    glibc-2.17-106.166.amzn1.x86_64
    nscd-2.17-106.166.amzn1.x86_64
    glibc-debuginfo-2.17-106.166.amzn1.x86_64
    glibc-debuginfo-common-2.17-106.166.amzn1.x86_64
    glibc-common-2.17-106.166.amzn1.x86_64
    glibc-static-2.17-106.166.amzn1.x86_64
    glibc-headers-2.17-106.166.amzn1.x86_64