[Bug network/19830] nss_dns: should check RDATA length against buffer length

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=19830

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f233c608d11434aa4a802ded6acdcac1f092729f

commit f233c608d11434aa4a802ded6acdcac1f092729f
Author: Florian Weimer <fweimer@redhat.com>
Date:   Wed Apr 27 15:11:41 2016 +0200

    nss_dns: Validate RDATA length against packet length [BZ #19830]

    In _nss_dns_getcanonname_r, a check for the availability of RR metadata
    was missing as well.

    (cherry picked from commit f749498fa53df9ead81e291cd9378d67483c2452)

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                  |    8 ++++++++
 resolv/nss_dns/dns-canon.c |   16 +++++++++++++---
 resolv/nss_dns/dns-host.c  |   15 +++++++++++++++
 3 files changed, 36 insertions(+), 3 deletions(-)

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