PHP 7.x < 7.0.2 Multiple Vulnerabilities

critical Web App Scanning Plugin ID 98842

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Synopsis

Description

According to its banner, the version of PHP running on the remote host is 7.x prior to 7.0.2. It is, therefore, affected by multiple vulnerabilities :

- An out-of-bounds read error exists in the gdImageRotateInterpolated() function in file gd_interpolation.c when handling background colors. A remote attacker can exploit this to disclose memory contents or crash the application. (CVE-2016-1903)

- An integer overflow condition exists in file exec.c in the escapeshellarg() and escapeshellcmd() functions due to a failure to properly validate user-supplied string input. A remote attacker can exploit this to cause a heap-based overflow, resulting in a denial of service or the execution of arbitrary code. (CVE-2016-1904)

- A use-after-free error exists in file wddx.c in the php_wddx_pop_element() function when handling WDDX packet deserialization. A remote attacker can exploit this, by dereferencing already freed memory, to execute arbitrary code.

- A type confusion flaw exists in file xmlrpc-epi-php.c in the PHP_to_XMLRPC_worker() function. A remote attacker can exploit this to disclose memory contents, crash the application process, or have other impact.

- A type confusion flaw exists in file wddx.c when handling WDDX packet deserialization. A remote attacker can exploit this to execute arbitrary code.

- An unspecified flaw exists in file fpm_log.c in the fpm_log_write() function when handling very long HTTP requests. A local attacker can exploit this to obtain sensitive information, via access to the access log file.

- A flaw exists in file lsapilib.c when handling requests due to the LSAPI module failing to clear its secrets in child processes. A remote attacker can exploit this to gain access to memory contents, resulting in the disclosure of sensitive information.

- A flaw exists in file lsapilib.c in the parseRequest() function due to a failure to properly sanitize input passed through multiple, unspecified parameters. A remote attacker can exploit this to cause a denial of service.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.