BIT-libphp-2020-7065
See a problem?- Import Source
- https://github.com/bitnami/vulndb/tree/main/data/libphp/BIT-libphp-2020-7065.json
- JSON Data
- https://api.osv.dev/v1/vulns/BIT-libphp-2020-7065
- Aliases
- Published
- 2025-08-11T13:53:07.698Z
- Modified
- 2025-08-11T15:13:44.934855Z
- Summary
- mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full
- Details
-
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.
- Database specific
{ "cpes": [ "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*" ], "severity": "High" }- References
-
- https://bugs.php.net/bug.php?id=79371
- https://nvd.nist.gov/vuln/detail/CVE-2020-7065
- https://security.netapp.com/advisory/ntap-20200403-0001/
- https://usn.ubuntu.com/4330-1/
- https://usn.ubuntu.com/4330-2/
- https://www.debian.org/security/2020/dsa-4719
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.php.net/ChangeLog-7.php#7.4.4
- https://www.tenable.com/security/tns-2021-14
Affected packages
Bitnami / libphp
Package
- Name
- libphp
- Purl
- pkg:bitnami/libphp
Severity
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator