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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
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.
Metrics
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vector strings. CVSS information contributed by other sources is also
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OR
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 7.3.0 up to (excluding) 7.3.16
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (excluding) 7.4.34
OR
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 7.3.0 up to (excluding) 7.3.16
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (excluding) 7.4.4
Added
CPE Configuration
OR
*cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Changed
Reference Type
https://security.netapp.com/advisory/ntap-20200403-0001/ No Types Assigned
https://security.netapp.com/advisory/ntap-20200403-0001/ Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/4330-1/ No Types Assigned
https://usn.ubuntu.com/4330-1/ Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/4330-2/ No Types Assigned
https://usn.ubuntu.com/4330-2/ Third Party Advisory
Changed
Reference Type
https://www.debian.org/security/2020/dsa-4719 No Types Assigned
https://www.debian.org/security/2020/dsa-4719 Third Party Advisory
Changed
Reference Type
https://www.php.net/ChangeLog-7.php#7.4.4 No Types Assigned
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.34, 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.
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.
OR
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 7.3.0 up to (excluding) 7.3.16
*cpe:2.3:a:php:php:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (excluding) 7.4.34
Changed
Reference Type
https://bugs.php.net/bug.php?id=79371 No Types Assigned
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