Vulnerability: CVE-2020-7062

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.


https://www.debian.org/security/2020/dsa-4717
https://www.debian.org/security/2020/dsa-4719
https://security.gentoo.org/glsa/202003-57
https://bugs.php.net/bug.php?id=79221
https://lists.debian.org/debian-lts-announce/2020/03/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
https://usn.ubuntu.com/4330-1/
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7062


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