[DRE-maint] Bug#1082382: ruby-devise-two-factor: CVE-2024-8796

[Moritz Mühlenhoff]

Source: ruby-devise-two-factor
X-Debbugs-CC: team at security.debian.org
Severity: important
Tags: security

Hi,

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

CVE-2024-8796[0]:
| Under the default configuration, Devise-Two-Factor versions >= 2.2.0
| & < 6.0.0 generate TOTP shared secrets that are 120 bits instead of
| the 128-bit minimum defined by RFC 4226. Using a shared secret
| shorter than the minimum to generate a multi-factor authentication
| code could make it easier for an attacker to guess the shared secret
| and generate valid TOTP codes.

https://github.com/devise-two-factor/devise-two-factor/security/advisories/GHSA-qjxf-mc72-wjr2
 

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-2024-8796
    https://www.cve.org/CVERecord?id=CVE-2024-8796

Please adjust the affected versions in the BTS as needed.