#VU22475 Out-of-bounds read in PHP - CVE-2019-9020
Published: November 1, 2019
Vulnerability identifier: #VU22475
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-9020
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PHP
PHP
Software vendor:
PHP Group
PHP Group
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the xml_elem_parse_buf() in ext/xmlrpc/libxmlrpc/xml_element.c when reading XML data via the xmlrpc_decode() PHP function. A remote attacker can create a specially crafted XML file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
Remediation
Install updates from vendor's website.