CVE-2020-7065
High
Description
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
SeverityHigh
CVSS7.4
Exploit probability—
Product
Php
PublishedApr 1, 2020
First seenApr 1, 2020
Weakness typeCWE-121CWE-121
How to fix
Update
- php php7.3.16, 7.4.4 or later
- tenable tenable.sc5.19.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| php php | 7.3.0 ≤ v < 7.3.16, 7.4.0 ≤ v < 7.4.4 | 7.3.16, 7.4.4 |
| debian debian_linux | 10.0 | — |
| canonical ubuntu_linux | 12.04, 14.04, 16.04, 18.04, 19.10, 20.04 | — |
| tenable tenable.sc | v < 5.19.0 | 5.19.0 |
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