The remote Debian host is missing a security-related update.
Several vulnerabilities were found in PHP, a widely-used open source general purpose scripting language : - CVE-2017-11142 Denial of service via overly long form variables - CVE-2017-11143 Invalid free() in wddx_deserialize() - CVE-2017-11144 Denial of service in openssl extension due to incorrect return value check of OpenSSL sealing function. - CVE-2017-11145 Out-of-bounds read in wddx_deserialize() - CVE-2017-11628 Buffer overflow in PHP INI parsing API - CVE-2017-12933 Buffer overread in finish_nested_data() - CVE-2017-16642 Out-of-bounds read in timelib_meridian()
Upgrade the php5 packages. For the oldstable distribution (jessie), these problems have been fixed in version 5.6.33+dfsg-0+deb8u1.