CVEs-PoC/2020/CVE-2020-7062.md

CVE-2020-7062

Description

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.

POC

Reference

• https://bugs.php.net/bug.php?id=79221

Github

No PoCs found on GitHub currently.