UBUNTU-CVE-2015-7576

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2015-7576
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-7576.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2015-7576
Upstream
Withdrawn
2025-07-18T16:43:17Z
Published
2016-02-16T02:59:00Z
Modified
2025-07-16T08:11:43.610594Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The httpbasicauthenticatewith method in actionpack/lib/actioncontroller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to bypass authentication by measuring timing differences.

References

Affected packages

Ubuntu:16.04:LTS / rails

Package

Name
rails
Purl
pkg:deb/ubuntu/rails@2:4.2.6-1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.2.6-1

Affected versions

2:4.*

2:4.1.10-1
2:4.2.5-1
2:4.2.5.1-1
2:4.2.5.2-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "rails",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-actionmailer",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-actionpack",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-actionview",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-activejob",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-activemodel",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-activerecord",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-activesupport",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-rails",
            "binary_version": "2:4.2.6-1"
        },
        {
            "binary_name": "ruby-railties",
            "binary_version": "2:4.2.6-1"
        }
    ]
}