CVE-2017-18264

Name	CVE-2017-18264
Description	An issue was discovered in libraries/common.inc.php in phpMyAdmin 4.0 before 4.0.10.20, 4.4.x, 4.6.x, and 4.7.0 prereleases. The restrictions caused by $cfg['Servers'][$i]['AllowNoPassword'] = false are bypassed under certain PHP versions (e.g., version 5). This can allow the login of users who have no password set even if the administrator has set $cfg['Servers'][$i]['AllowNoPassword'] to false (which is also the default). This occurs because some implementations of the PHP substr function return false when given '' as the first argument.
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-1415-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
phpmyadmin (PTS)	jessie, jessie (lts)	4:4.2.12-2+deb8u11	fixed
	stretch (security)	4:4.6.6-4+deb9u2	fixed
	stretch (lts), stretch	4:4.6.6-4+deb9u3	fixed
	bullseye	4:5.0.4+dfsg2-2+deb11u1	fixed
	bookworm	4:5.2.1+dfsg-1	fixed
	trixie	4:5.2.1+dfsg-2	fixed
	sid	4:5.2.1+dfsg-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin
phpmyadmin	source	wheezy	(unfixed)	end-of-life
phpmyadmin	source	jessie	4:4.2.12-2+deb8u3		DLA-1415-1
phpmyadmin	source	(unstable)	4:4.6.6-2

Notes

https://www.phpmyadmin.net/security/PMASA-2017-8/
https://github.com/phpmyadmin/phpmyadmin/commit/7232271a379396ca1d4b083af051262057003c41 (4.7-branch)
https://github.com/phpmyadmin/phpmyadmin/commit/b6ca92cc75c8a16001425be7881e73430bcc35b8 (4.0-branch)
If the issue is triggerable depends as well on the used PHP version.