CVE-2018-20102

An out-of-bounds read in dns_validate_dns_response in dns.c was discovered
in HAProxy through 1.8.14. Due to a missing check when validating DNS
responses, remote attackers might be able read the 16 bytes corresponding
to an AAAA record from the non-initialized part of the buffer, possibly
accessing anything that was left on the stack, or even past the end of the
8193-byte buffer, depending on the value of accepted_payload_size.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=916308&gt;