[DRE-maint] Bug#1009636: ruby-devise-two-factor: CVE-2021-43177 - possible reuse of OTP due to incomplete fix for CVE-2015-7225

[Neil Williams]

Source: ruby-devise-two-factor
Version: 4.0.2-1
Severity: important
Tags: security
X-Debbugs-Cc: codehelp at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for ruby-devise-two-factor.

CVE-2021-43177[0]:
| 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)


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2021-43177
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43177

Please adjust the affected versions in the BTS as needed.

See also: https://security-tracker.debian.org/tracker/CVE-2015-7225
and https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798466


-- System Information:
Debian Release: bookworm/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.16.0-6-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled