Multiple buffer overflows in the php_parserr function in
ext/standard/dns.c in PHP before 5.4.32 and 5.5.x before 5.5.16 allow
remote DNS servers to cause a denial of service (application crash) or
possibly execute arbitrary code via a crafted DNS record, related to
the dns_get_record function and the dn_expand function. NOTE: this
issue exists because of an incomplete fix for CVE-2014-4049.
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