CVE-2020-7062
HIGH7.5EPSS 1.2%Null Pointer Dereference in PHP Session Upload Progress
Published: 2/27/2020Modified: 4/28/2026
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.
Affected packages (5)
- Bitnami/libphp>= 7.2.0, < 7.2.28, >= 7.3.0, < 7.3.15, >= 7.4.0, < 7.4.3
- Bitnami/php>= 7.2.0, < 7.2.28, >= 7.3.0, < 7.3.15, >= 7.4.0, < 7.4.3
- Bitnami/php-min>= 7.2.0, < 7.2.28, >= 7.3.0, < 7.3.15, >= 7.4.0, < 7.4.3
- Debian/php5from 0, < 5.6.40+dfsg-0+deb8u10
- Debian/php7.4from 0, < 7.4.3-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (10)
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-7062
- WEBhttp://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
- WEBhttps://bugs.php.net/bug.php?id=79221
- WEBhttps://lists.debian.org/debian-lts-announce/2020/03/msg00034.html
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2020-7062
- WEBhttps://security.gentoo.org/glsa/202003-57
- WEBhttps://usn.ubuntu.com/4330-1/
- WEBhttps://www.debian.org/security/2020/dsa-4717
- WEBhttps://www.debian.org/security/2020/dsa-4719
- WEBhttps://www.tenable.com/security/tns-2021-14