#VU78978 Buffer overflow in PHP - CVE-2023-3824

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Main Vulnerability Database Vulnerabilities #VU78978

#VU78978 Buffer overflow in PHP - CVE-2023-3824

Published: August 6, 2023 / Updated: February 7, 2025


Vulnerability identifier: #VU78978
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2023-3824
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vulnerable software:
PHP
Software vendor:
PHP Group

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the phar_dir_read() function. A remote attacker can force the application to open a specially crafted .phar archive,  trigger memory corruption and execute arbitrary code on the target system.


Remediation

Install updates from vendor's website.

External links