Heap-based buffer overflow in PHP - #VU7359
Published: July 6, 2017
Vulnerability identifier: #VU7359
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The weakness exists due to heap-based buffer overflow in substr'swhen handling malicious input. A remote attacker can send specially crafted parameter to trigger memory corruption and execute arbitrary code with web server privileges.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to heap-based buffer overflow in substr'swhen handling malicious input. A remote attacker can send specially crafted parameter to trigger memory corruption and execute arbitrary code with web server privileges.
Successful exploitation of the vulnerability may result in system compromise.
Affected software
PHP
Remediation
Update to version 7.0.21.