Synopsis
PHP 7.0.x < 7.0.15 Multiple Vulnerabilities
Description
According to its banner, the version of PHP running on the remote web server is 7.0.x prior to 7.0.15. It is, therefore, affected by the following vulnerabilities :
- A remote code execution vulnerability exists due to a use-after-free error in the unserialize() function that is triggered when using DateInterval input. An unauthenticated, remote attacker can exploit this to dereference already freed memory, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2015-2787)
- A use-after-free error exists that is triggered when handling unserialized object properties. An unauthenticated, remote attacker can exploit this, via a specially crafted request, to execute arbitrary code. (CVE-2016-7479)
- An integer overflow condition exists in the _zend_hash_init() function in zend_hash.c due to improper validation of unserialized objects. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-5340)
- A floating pointer exception flaw exists in the exif_convert_any_to_int() function in exif.c that is triggered when handling TIFF and JPEG image tags. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition. (CVE-2016-10158)
- An integer overflow condition exists in the phar_parse_pharfile() function in phar.c due to improper validation when handling phar archives. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition. (CVE-2016-10159)
- An off-by-one overflow condition exists in the phar_parse_pharfile() function in phar.c due to improper parsing of phar archives. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition. (CVE-2016-10160)
- An out-of-bounds read error exists in the finish_nested_data() function in var_unserializer.c due to improper validation of unserialized data. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition or the disclosure of memory contents. ( CVE-2016-10161)
- A NULL pointer dereference flaw exists in the php_wddx_pop_element() function in wddx.c due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition. (CVE-2016-10162)
- An signed integer overflow condition exists in gd_io.c due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to have an unspecified impact.
- A type confusion flaw exists that is triggered during the deserialization of specially crafted GMP objects. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition.
- A type confusion error exists that is triggered when deserializing ZVAL objects. An unauthenticated, remote attacker can exploit this to execute arbitrary code.
- An out-of-bounds read error exists in the phar_parse_pharfile() function in phar.c due to improper parsing of phar archives. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition.
- A denial of service vulnerability exists in the bundled GD Graphics Library (LibGD) in the gdImageCreateFromGd2Ctx() function in gd_gd2.c due to improper validation of images. An unauthenticated, remote attacker can exploit this, via a specially crafted image, to crash the process.
Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to PHP version 7.0.15 or later.