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.
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- http://www.ubuntu.com/usn/USN-2344-1
- https://github.com/php/php-src/commit/2fefae47716d501aec41c1102f3fd4531f070b05
- https://github.com/psecio/versionscan