Vulnerability · Published Apr 1, 2020 · Assigned by php
CVE-2020-7065mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full
High 7.4
In plain English
A high-severity stack buffer overflow in PHP from PHP Group. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.9% (higher than 92% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)4.9%top 7.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | apcu-panel | 5.1.17-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | libzip | 1.5.2-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | libzip | 1.5.2-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | libzip | 1.5.2-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | libzip-devel | 1.5.2-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | libzip-devel | 1.5.2-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | libzip-devel | 1.5.2-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | libzip-tools | 1.5.2-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | libzip-tools | 1.5.2-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | libzip-tools | 1.5.2-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-bcmath | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-bcmath | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-bcmath | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-cli | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-cli | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-cli | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-common | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-common | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-common | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-dba | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-dba | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-dba | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-dbg | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-dbg | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-dbg | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-devel | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-devel | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-devel | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-embedded | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-embedded | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-embedded | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-enchant | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-enchant | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-enchant | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-fpm | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-fpm | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-fpm | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-gd | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-gd | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-gd | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-gmp | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-gmp | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-gmp | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-intl | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-intl | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-intl | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-json | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-json | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-json | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-ldap | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-ldap | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-ldap | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-mbstring | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-mbstring | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-mbstring | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-mysqlnd | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-mysqlnd | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-mysqlnd | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-odbc | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-odbc | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-odbc | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-opcache | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-opcache | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-opcache | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pdo | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-pdo | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pdo | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pear | 1:1.10.9-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-apcu | 5.1.17-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-apcu | 5.1.17-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-apcu | 5.1.17-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-apcu-devel | 5.1.17-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-apcu-devel | 5.1.17-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-apcu-devel | 5.1.17-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-rrd | 2.0.1-1.module_el8.6.0+2750+78feabcb | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-rrd | 2.0.1-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-rrd | 2.0.1-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-xdebug | 2.8.0-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-xdebug | 2.8.0-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-xdebug | 2.8.0-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-zip | 1.15.4-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-zip | 1.15.4-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-pecl-zip | 1.15.4-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pgsql | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-pgsql | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-pgsql | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-process | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-process | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-process | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-recode | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-recode | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-recode | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-snmp | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-snmp | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-snmp | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-soap | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-soap | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-soap | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-xml | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-xml | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-xml | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-xmlrpc | 7.3.20-1.module_el8.5.0+152+112d3b8c | ALSA-2020:3662 |
| AlmaLinux:8 | php-xmlrpc | 7.3.20-1.module_el8.3.0+2009+b272fdef | ALSA-2020:3662 |
| AlmaLinux:8 | php-xmlrpc | 7.3.20-1.module_el8.4.0+2229+b272fdef | ALSA-2020:3662 |
| Rocky Linux:8 | libzip | 0:1.5.2-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux:8 | php | 0:7.3.20-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux:8 | php-pear | 1:1.10.9-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux:8 | php-pecl-apcu | 0:5.1.17-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux:8 | php-pecl-rrd | 0:2.0.1-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux:8 | php-pecl-xdebug | 0:2.8.0-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
| Rocky Linux:8 | php-pecl-zip | 0:1.15.4-1.module+el8.4.0+414+2e7afcdd | RLSA-2020:3662 |
Affected products (as reported)
Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
References
- USN-4330-1 vendor-advisory, x_refsource_UBUNTU
- USN-4330-2 vendor-advisory, x_refsource_UBUNTU
- DSA-4719 vendor-advisory, x_refsource_DEBIAN
- https://security.netapp.com/advisory/ntap-20200403-0001/ x_refsource_CONFIRM
- https://www.oracle.com/security-alerts/cpuoct2021.html x_refsource_MISC
- https://bugs.php.net/bug.php?id=79371 x_refsource_MISC
- https://www.php.net/ChangeLog-7.php#7.4.4 x_refsource_CONFIRM
- https://www.tenable.com/security/tns-2021-14 x_refsource_CONFIRM