Php 7.4.33 | Exploit

The vulnerability was a classic memory corruption issue. By supplying a specially crafted font file to a server running an unpatched version of PHP 7.4, an attacker could trigger a "read outside allocated buffer" error. In the world of cybersecurity, this is like tricking a librarian into reading the secret notes hidden on the back of a shelf instead of the book you asked for. The Attack Vector

The exploit at the heart of this final chapter involved a vulnerability in the imageloadfont() function within the PHP GD extension The Flaw in the Canvas php 7.4.33 exploit

to use that file, the system fails to properly validate the font's internal structure. The Payload The vulnerability was a classic memory corruption issue