UpHeron
All vulnerabilities

Servers and applications

CVE-2015-3900

RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a "DNS hijack attack."

Severity
Medium 5.0
Published
24 Jun 2015
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
RubyServers and applications · cpe:a:ruby-lang:ruby
  • Version 2.2.0
  • Version 2.1.5
  • Version 2.1.4
  • Version 2.1.3
All 12 release lines
  • Version 1.9
  • Version 1.9.1
  • Version 1.9.2
  • Version 1.9.3
  • Version 2.0.0
  • Version 2.1
  • Version 2.1.1
  • Version 2.1.2
  • Version 2.1.3
  • Version 2.1.4
  • Version 2.1.5
  • Version 2.2.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-3900
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-3900