CVE-2020-7062
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Php
PublishedFeb 27, 2020
First seenFeb 27, 2020
Weakness typeCWE-476NULL pointer dereference
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| php php | 7.2.0 ≤ v ≤ 7.2.27, 7.3.0 ≤ v ≤ 7.3.14, 7.4.0 ≤ v ≤ 7.4.2 | — |
| opensuse leap | 15.1 | — |
| debian debian_linux | 8.0, 9.0, 10.0 | — |
| canonical ubuntu_linux | 12.04, 14.04, 16.04, 18.04, 19.10 | — |
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