Buffer overflow in PHP - CVE-2022-4900

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Main Vulnerability Database Vulnerabilities #VU74185

Buffer overflow in PHP - CVE-2022-4900

Published: March 30, 2023


Vulnerability identifier: #VU74185
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-4900
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
PHP
Software vendor:
PHP Group

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the php_cli_server_startup_workers() function in sapi/cli/php_cli_server.c when processing PHP_CLI_SERVER_WORKERS environment variable. A local user can trigger memory corruption and execute arbitrary code on the target system.



Remediation

Install updates from vendor's website.

External links