Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| PHP Group / PHP | affected 7.3.x before 7.3.16; affected 7.4.x before 7.4.4 |
CWE
CWE-121
References
- https://usn.ubuntu.com/4330-1/
- https://usn.ubuntu.com/4330-2/
- https://www.debian.org/security/2020/dsa-4719
- https://security.netapp.com/advisory/ntap-20200403-0001/
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://bugs.php.net/bug.php?id=79371
- https://www.php.net/ChangeLog-7.php#7.4.4
- https://www.tenable.com/security/tns-2021-14
ADP enrichment
No English description supplied.
- https://usn.ubuntu.com/4330-1/
- https://usn.ubuntu.com/4330-2/
- https://www.debian.org/security/2020/dsa-4719
- https://security.netapp.com/advisory/ntap-20200403-0001/
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://bugs.php.net/bug.php?id=79371
- https://www.php.net/ChangeLog-7.php#7.4.4
- https://www.tenable.com/security/tns-2021-14