CVE-2016-7412: Improper Restriction of Operations within the Bounds of a Memory Buffer

ext/mysqlnd/mysqlndwireprotocol.c in PHP before 5.6.26 and 7.x before 7.0.11 does not verify that a BIT field has the UNSIGNEDFLAG flag, which allows remote MySQL servers to cause a denial of service heap-based buffer overflow or possibly have unspecified other impact via crafted field metadata...