Verified flaws in the PHP exif extension allow attackers to craft malicious JPEG or TIFF images. When the server attempts to parse these images using functions like exif_read_data() , it triggers a buffer overflow. This can lead to information disclosure or full remote code execution.
: Heap out-of-bounds read and read-after-free states caused by improper validation of raw XML input data. CVE-2019-9021 PHAR extension
Continuing to run PHP 5.6.40 (or any 5.6 sub-version) is a significant security liability that exposes your application to known exploits. Even if you are running the patched Debian LTS versions, you are missing out on the architectural security improvements of modern PHP. php version 5640 vulnerabilities verified
Released on January 10, 2019, PHP 5.6.40 was the final scheduled security release for the PHP 5.6 branch. Since it has reached its status, the official PHP development team no longer provides security patches or updates for it. This article breaks down the verified vulnerabilities within PHP 5.6.40, the operational risks of running EOL software, and how to properly secure your server infrastructure. 🛡️ The Verified Vulnerabilities in PHP 5.6.40
Restrict the attack surface by disabling vulnerable functions and features directly in the PHP configuration file: Verified flaws in the PHP exif extension allow
December 31, 2018 (Release 5.6.40 was a final security patch provided just after official EOL). Security Posture: CRITICAL RISK.
Understanding CVE-2024-24260: The Verified Vulnerability in PHP Version 5.6.40 : Heap out-of-bounds read and read-after-free states caused
Week 6 — Reporting, Hardening, & Continuous Monitoring
CloudLinux secures old versions of PHP by patching vulnerabilities like UAF and buffer overflows at the kernel and software level for hosting providers.