Medium: glibc

Issue Overview:

Multiple errors in glibc’s formatted printing functionality could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort.

Affected Packages:

glibc

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

New Packages:

i686:  
    glibc-common-2.12-1.80.40.amzn1.i686  
    glibc-debuginfo-common-2.12-1.80.40.amzn1.i686  
    glibc-headers-2.12-1.80.40.amzn1.i686  
    nscd-2.12-1.80.40.amzn1.i686  
    glibc-static-2.12-1.80.40.amzn1.i686  
    glibc-debuginfo-2.12-1.80.40.amzn1.i686  
    glibc-utils-2.12-1.80.40.amzn1.i686  
    glibc-2.12-1.80.40.amzn1.i686  
    glibc-devel-2.12-1.80.40.amzn1.i686  
  
src:  
    glibc-2.12-1.80.40.amzn1.src  
  
x86_64:  
    glibc-2.12-1.80.40.amzn1.x86_64  
    glibc-devel-2.12-1.80.40.amzn1.x86_64  
    nscd-2.12-1.80.40.amzn1.x86_64  
    glibc-debuginfo-2.12-1.80.40.amzn1.x86_64  
    glibc-debuginfo-common-2.12-1.80.40.amzn1.x86_64  
    glibc-utils-2.12-1.80.40.amzn1.x86_64  
    glibc-headers-2.12-1.80.40.amzn1.x86_64  
    glibc-static-2.12-1.80.40.amzn1.x86_64  
    glibc-common-2.12-1.80.40.amzn1.x86_64  

Additional References

Red Hat: CVE-2012-3404, CVE-2012-3405, CVE-2012-3406

Mitre: CVE-2012-3404, CVE-2012-3405, CVE-2012-3406