cve/2020/CVE-2020-7065.md

CVE-2020-7065

Description

In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.

POC

Reference

• https://www.oracle.com/security-alerts/cpuoct2021.html
• https://www.oracle.com/security-alerts/cpuoct2021.html

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/RClueX/Hackerone-Reports
• https://github.com/imhunterand/hackerone-publicy-disclosed