Improper Authentication Affecting ruby4.0 package, versions <0:4.0.0-33.3.hum1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
3.23% (88th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Authentication vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-RHEL10-RUBY40-16079962
  • published16 Apr 2026
  • disclosed8 Aug 2008

Introduced: 8 Aug 2008

CVE-2008-3905  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade RHEL:10 ruby4.0 to version 0:4.0.0-33.3.hum1 or higher.
This issue was patched in RHSA-2026:8838.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby4.0 package and not the ruby4.0 package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

resolv.rb in Ruby 1.8.5 and earlier, 1.8.6 before 1.8.6-p287, 1.8.7 before 1.8.7-p72, and 1.9 r18423 and earlier uses sequential transaction IDs and constant source ports for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than CVE-2008-1447.

References

CVSS Base Scores

version 3.1