CVE-2020-7066

Name	CVE-2020-7066
Description	In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2188-1, DSA-4717-1, DSA-4719-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
php7.4 (PTS)	bullseye	7.4.33-1+deb11u5	fixed
	bullseye (security)	7.4.33-1+deb11u7	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
php5	source	jessie	5.6.40+dfsg-0+deb8u11	DLA-2188-1
php5	source	(unstable)	(unfixed)
php7.0	source	stretch	7.0.33-0+deb9u8	DSA-4717-1
php7.0	source	(unstable)	(unfixed)
php7.3	source	buster	7.3.19-1~deb10u1	DSA-4719-1
php7.3	source	(unstable)	(unfixed)
php7.4	source	(unstable)	7.4.5-1

Notes

Fixed in PHP 7.4.4, 7.3.16, 7.2.29
PHP Bug: https://bugs.php.net/79329
https://git.php.net/?p=php-src.git;a=commit;h=0d139c5b94a5f485a66901919e51faddb0371c43