Stack-based buffer overflow in string/strcoll_l.c in the GNU C Library (aka glibc or libc6) 2.17 and earlier allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string that triggers a malloc failure and use of the alloca function.
https://bugzilla.redhat.com/show_bug.cgi?id=858238
http://sourceware.org/bugzilla/show_bug.cgi?id=14547
https://security.gentoo.org/glsa/201503-04
http://www.mandriva.com/security/advisories?name=MDVSA-2013:283
http://www.mandriva.com/security/advisories?name=MDVSA-2013:284