CVE-2015-1781
Buffer overflow in the gethostbyname_r and other unspecified NSS functions in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response, which triggers a call with a misaligned buffer.
Date published : 2015-09-28
http://www.securityfocus.com/bid/74255
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html