CVE-2020-7062
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| PHP Group | PHP | 7.3.x < 7.3.15 | affected |
| PHP Group | PHP | 7.4.x < 7.4.3 | affected |
| PHP Group | PHP | 7.2.x < 7.2.28 | affected |
Weaknesses
- CWE-476: CWE-476 NULL Pointer Dereference
Workarounds
Disable file uploading, file upload tracking or enable session.upload_progress.cleanup.
ADP Enrichment
CVE Program Container
Additional References
- https://bugs.php.net/bug.php?id=79221
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
- https://security.gentoo.org/glsa/202003-57
- https://lists.debian.org/debian-lts-announce/2020/03/msg00034.html
- https://usn.ubuntu.com/4330-1/
- https://www.debian.org/security/2020/dsa-4717
- https://www.debian.org/security/2020/dsa-4719
- https://www.tenable.com/security/tns-2021-14
References
- https://bugs.php.net/bug.php?id=79221
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
- https://security.gentoo.org/glsa/202003-57
- https://lists.debian.org/debian-lts-announce/2020/03/msg00034.html
- https://usn.ubuntu.com/4330-1/
- https://www.debian.org/security/2020/dsa-4717
- https://www.debian.org/security/2020/dsa-4719
- https://www.tenable.com/security/tns-2021-14
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.