CVE-2020-7065
HIGHPHP 7.3.0-7.3.15 - Stack-based Buffer Overflow in mb_strtolower() with UTF-32LE Encoding
Title source: llmDescription
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.
References (8)
Core 8
Core References
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4330-1/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4330-2/
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4719
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200403-0001/
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuoct2021.html
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://bugs.php.net/bug.php?id=79371
Release Notes, Vendor Advisory x_refsource_confirm
https://www.php.net/ChangeLog-7.php#7.4.4
Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/tns-2021-14
Scores
CVSS v3
7.4
EPSS
0.0502
EPSS Percentile
89.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Details
CWE
CWE-121
CWE-787
Status
published
Products (9)
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
19.10
canonical/ubuntu_linux
20.04
debian/debian_linux
10.0
php/php
7.3.0 - 7.3.16
tenable/tenable.sc
< 5.19.0
Published
Apr 01, 2020
Tracked Since
Feb 18, 2026