CVE ID:	CVE-2021-21424
Description:	Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.
Test IDs:	1.3.6.1.4.1.25623.1.0.879702   1.3.6.1.4.1.25623.1.1.1.2.2023.3493   1.3.6.1.4.1.25623.1.0.145966   1.3.6.1.4.1.25623.1.0.879681   1.3.6.1.4.1.25623.1.0.879699   1.3.6.1.4.1.25623.1.0.879696
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-21424 https://github.com/symfony/symfony/security/advisories/GHSA-5pv8-ppvj-4h68 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VRUS2H2SSOQWNLBD35SKIWIDQEMV2PD3/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RH7TMM5CHQYBFFGXWRPJDPB3SKCZXI2M/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UC7BND775DVZDQT3RMGD2HVB2PKLJDJW/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KENRNLB3FYXYGDWRBH2PDBOZZKOD7VY4/ https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011 https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011 https://lists.debian.org/debian-lts-announce/2023/07/msg00014.html