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Description of problem:
Upstream has fixed couple of unbound alloca uses which can lead to program crashes if excessively long inputs are passed to certain functions.

http://sourceware.org/bugzilla/show_bug.cgi?id=12671
http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=f2962a71959fd254a7a223437ca4b63b9e81130c

covers cases that can be triggered via getaddrinfo, getservbyname* and glob.

http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=34a9094f49241ebb72084c536cf468fd51ebe3ec

covers other alloca uses inside getaddrinfo.

Version-Release number of selected component (if applicable):
glibc-2.12-1.47.el6_2.5

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0763.html