CVE-2020-7062
Null Pointer Dereference in PHP Session Upload Progress
HIGH 7.5EPSS 3.6%
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
- PHP Group · PHP
- CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P - EPSS
- 3.58% chance of exploitation in the next 30 days, 89th percentile
- Published
- 2020-02-27
- Updated
- 2024-09-16
Proof-of-concept exploits (1)
Security advisories
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00034.html
- https://security.gentoo.org/glsa/202003-57
- 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