CVE-2020-7062

MEDIUM

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.

References

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html

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

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

Details

Source: MITRE

Published: 2020-02-27

Updated: 2020-07-08

Type: CWE-476

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH