PHP 5.6.x < 5.6.21 Multiple Vulnerabilities

High Web Application Scanning Plugin ID 98811

Synopsis

PHP 5.6.x < 5.6.21 Multiple Vulnerabilities

Description

According to its banner, the version of PHP running on the remote web server is 5.6.x prior to 5.6.21. It is, therefore, affected by multiple vulnerabilities :

- A signedness error exists in the GD Graphics library within file gd_gd2.c due to improper validation of user-supplied input when handling compressed GD2 data. An unauthenticated, remote attacker can exploit this to cause a heap-based buffer overflow, resulting in a denial of service condition or
the execution of arbitrary code. (CVE-2016-3074)

- An out-of-bounds read error exists within file ext/intl/grapheme/grapheme_string.c when handling negative offsets in the zif_grapheme_stripos() function. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or disclose memory contents.

- An out-of-bounds read error exists in the php_str2num() function within file ext/bcmath/bcmath.c when handling negative scales. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the disclosure of memory contents.

- An out-of-bounds read error exists in the exif_read_data() function within file ext/exif/exif.c when handling exif headers. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the disclosure of memory contents.

- A flaw exists in the xml_parse_into_struct() function within file ext/xml/xml.c when handling specially crafted XML contents. An unauthenticated, remote attacker can exploit this to cause a denial of service condition.

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 5.6.21 or later.

See Also

http://php.net/ChangeLog-5.php#5.6.21

Plugin Details

Severity: High

ID: 98811

Type: remote

Published: 2019/01/09

Updated: 2019/04/10

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

0
0

Vulnerability Information

CPE: cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

Exploit Available: true

Patch Publication Date: 2016/04/28

Vulnerability Publication Date: 2016/04/21

Reference Information

CVE: CVE-2016-3074, CVE-2016-4537, CVE-2016-4538, CVE-2016-4539, CVE-2016-4540, CVE-2016-4541, CVE-2016-4542, CVE-2016-4543, CVE-2016-4544

BID: 87087, 90173, 90173, 90174, 90172, 89844