PHP 7.3.x < 7.3.1 Multiple vulnerabilities

critical Web Application Scanning Plugin ID 98242
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Synopsis

PHP 7.3.x < 7.3.1 Multiple vulnerabilities

Description

According to its banner, the version of PHP running on the remote web server is 5.6.x prior to 5.6.40, 7.1.x prior to 7.1.26, 7.2.x prior to 7.2.14 or 7.3.x prior to 7.3.1. It is, therefore, affected by multiple vulnerabilities:

 - An integer underflow condition exists in _gdContributionsAlloc function in gd_interpolation.c. An unauthenticated, remote attacker can have unspecified impact via vectors related to decrementing the u variable. (CVE-2016-10166)

 - A heap-based buffer overflow condition exists in gdImageColorMatch due to improper calculation of the allocated buffer size. An attacker can exploit this, via calling imagecolormatch function with crafted image data as parameters. (CVE-2019-6977)

 - A heap-based buffer over-read exists in the xmlrpc_decode function due to improper validation of input data. An unauthenticated, remote attacker can exploit this, via a specially crafted request, to cause a heap out-of-bounds read or read-after-free condition, which could result in a complete system compromise. (CVE-2019-9020)

 - A heap-based buffer over-read exists in the PHAR reading functions in the PHAR extension, due to improper implementation of memory operations. An unauthenticated, remote attacker can exploit this, via persuading a user to parse a specially crafted file name on the targeted system, to disclose sensitive information. (CVE-2019-9021)

 - An out-of-bounds read error exists in the dns_get_record function due to improper parsing of DNS responses. An unauthenticated, remote attacker can exploit this, via a specially crafted DNS reply, to disclose memory contents. (CVE-2019-9022)

 - Multiple heap-based buffer over-read instances exist in mbstring regular expression functions due to improper implementation of memory operations. An unauthenticated, remote attacker can exploit this by sending a specially crafted regular expression that contains multibyte sequences, to cause a condition that could allow the attacker to completely compromise the target system. (CVE-2019-9023)

 - An out-of-bounds read error exists in the xmlrpc_decode function due to improper implementation of memory operations. An unauthenticated, remote attacker can exploit this, via a hostile XMLRPC server to cause PHP to read from memory outside of allocated areas. (CVE-2019-9024)

 - An out-of-bounds read and write error exists in the mb_split function due to improper implementation of memory operations. An unauthenticated, remote attacker can exploit this by causing PHP to execute the memcpy function with a negative argument, to cause buffer over-read and over-write conditions which could allow the attacker to completely compromise the system. (CVE-2019-9025)

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 7.3.1 or later.

See Also

http://php.net/ChangeLog-7.php#7.3.1

Plugin Details

Severity: Critical

ID: 98242

Type: remote

Published: 3/13/2019

Updated: 10/7/2021

Scan Template: scan, pci, api

Risk Information

CVSS Score Source: CVE-2016-10166

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/15/2017

Vulnerability Publication Date: 3/15/2017

Reference Information

CVE: CVE-2016-10166, CVE-2019-6977, CVE-2019-9020, CVE-2019-9021, CVE-2019-9022, CVE-2019-9023, CVE-2019-9024, CVE-2019-9025