CVE-2021-41268

NameCVE-2021-41268
DescriptionSymfony/SecurityBundle is the security system for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Since the rework of the Remember me cookie in version 5.3.0, the cookie is not invalidated when the user changes their password. Attackers can therefore maintain their access to the account even if the password is changed as long as they have had the chance to login once and get a valid remember me cookie. Starting with version 5.3.12, Symfony makes the password part of the signature by default. In that way, when the password changes, then the cookie is not valid anymore.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
symfony (PTS)jessie, jessie (lts)2.3.21+dfsg-4+deb8u6fixed
stretch (security)2.8.7+dfsg-1.3+deb9u3fixed
stretch (lts), stretch2.8.7+dfsg-1.3+deb9u5fixed
buster (security), buster, buster (lts)3.4.22+dfsg-2+deb10u3fixed
bullseye4.4.19+dfsg-2+deb11u6fixed
bookworm5.4.23+dfsg-1+deb12u2fixed
bookworm (security)5.4.23+dfsg-1+deb12u4fixed
sid, trixie6.4.15+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
symfonysource(unstable)(not affected)

Notes

- symfony <not-affected> (Vulnerable code never in released version in unstable)
https://github.com/symfony/symfony/security/advisories/GHSA-qw36-p97w-vcqr
https://github.com/symfony/symfony/commit/36a808b857cd3240244f4b224452fb1e70dc6dfc (v5.3.12)

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