CVE-2021-43177

Name	CVE-2021-43177
Description	As a result of an incomplete fix for CVE-2015-7225, in versions of devise-two-factor prior to 4.0.2 it is possible to reuse a One-Time-Password (OTP) for one (and only one) immediately trailing interval. CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
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	1009636

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ruby-devise-two-factor (PTS)	bullseye	3.1.0-2	vulnerable
	sid, trixie, bookworm	4.0.2-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ruby-devise-two-factor	source	(unstable)	4.0.2-1			1009636

Notes

[bullseye] - ruby-devise-two-factor <no-dsa> (Minor issue)
https://github.com/tinfoil/devise-two-factor/security/advisories/GHSA-jm35-h8q2-73mp
https://github.com/tinfoil/devise-two-factor/pull/108
https://github.com/tinfoil/devise-two-factor/commit/64576bb9e7d29800c5f92bb86fb6ecff91ad6105 (v4.0.2)