CVE-2023-46733

Name	CVE-2023-46733
Description	Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in versions 5.4.21 and 6.2.7 and prior to versions 5.4.31 and 6.3.8, `SessionStrategyListener` does not migrate the session after every successful login. It does so only in case the logged in user changes by means of checking the user identifier. In some use cases, the user identifier doesn't change between the verification phase and the successful login, while the token itself changes from one type (partially-authenticated) to another (fully-authenticated). When this happens, the session id should be regenerated to prevent possible session fixations, which is not the case at the moment. As of versions 5.4.31 and 6.3.8, Symfony now checks the type of the token in addition to the user identifier before deciding whether the session id should be regenerated.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1055775

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
symfony (PTS)	buster	3.4.22+dfsg-2+deb10u1	fixed
	buster (security)	3.4.22+dfsg-2+deb10u3	fixed
	bullseye	4.4.19+dfsg-2+deb11u4	fixed
	bookworm	5.4.23+dfsg-1+deb12u1	fixed
	sid, trixie	6.4.6+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Debian Bugs
symfony	source	buster	(not affected)
symfony	source	bullseye	(not affected)
symfony	source	bookworm	5.4.23+dfsg-1+deb12u1
symfony	source	(unstable)	5.4.31+dfsg-1	1055775

Notes

[bullseye] - symfony <not-affected> (Vulnerable code introduced later)
[buster] - symfony <not-affected> (Vulnerable code introduced later)
https://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx
https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74 (v5.4.31, v6.3.8)