cve/2024/CVE-2024-2757.md

CVE-2024-2757

Description

In PHP 8.3.* before 8.3.5, function mb_encode_mimeheader() runs endlessly for some inputs that contain long strings of non-space characters followed by a space. This could lead to a potential DoS attack if a hostile user sends data to an application that uses this function. 

POC

Reference

• http://www.openwall.com/lists/oss-security/2024/04/12/11
• https://github.com/php/php-src/security/advisories/GHSA-fjp9-9hwx-59fq

Github

• https://github.com/fkie-cad/nvd-json-data-feeds