CVE-2020-7065

Published: 01 April 2020

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.

Priority

CVSS 3 base score: 8.8

Status

Package	Release	Status
php5 Launchpad, Ubuntu, Debian	Upstream	Needs triage



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Not vulnerable
php7.0 Launchpad, Ubuntu, Debian	Upstream	Needs triage



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Not vulnerable
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
php7.2 Launchpad, Ubuntu, Debian	Upstream	Needs triage



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Not vulnerable
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
php7.3 Launchpad, Ubuntu, Debian	Upstream	Needs triage



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
php7.4 Launchpad, Ubuntu, Debian	Upstream	Released (7.4.4)



	Ubuntu 20.04 LTS (Focal Fossa)	Released (7.4.3-4ubuntu1.1)
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist

Notes

Author	Note
sbeattie	PEAR issues should go against php-pear as of xenial

References

Bugs

https://bugs.php.net/bug.php?id=79371

CVE-2020-7065

Medium

Status

Notes

References

Bugs

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