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Fencer Intel
medium 5.0

CVE-2015-3225 json

Rack vulnerable to Denial of Service via large parameter depth request

published 11y ago modified 4mo ago also GHSA-rgr4-9jh5-j4j6 , EUVD-2017-0302

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.9%
EPSS 7.9% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

lib/rack/utils.rb in Rack before 1.5.4 and 1.6.x before 1.6.2, as used with Ruby on Rails 3.x and 4.x and other products, allows remote attackers to cause a denial of service (SystemStackError) via a request with a large parameter depth.

Patch / fix

  • rubygems rack 1.4.6, 1.5.4, 1.6.2
  • ruby-rack Debian 14, Debian 13, Debian 12 1.5.2-4

debian advisories DEBIAN-CVE-2015-3225

  • v8 satellite capsule 6.3, satellite 6.3 1:3.14.5.10-19.el7sat
  • tfm satellite capsule 6.3, satellite 6.3 3.2-11.el7sat
  • kobo satellite capsule 6.3, satellite 6.3 0.5.1-1.el7sat
  • gofer satellite capsule 6.3, satellite 6.3 2.7.7-3.el7sat
  • hiera satellite capsule 6.3, satellite 6.3 1.3.1-2.el7sat
  • facter satellite capsule 6.3, satellite 6.3 1:2.4.6-3.el7sat
  • ostree satellite capsule 6.3, satellite 6.3 2017.1-2.atomic.el7
  • puppet satellite capsule 6.3, satellite 6.3 3.8.6-4.el7sat

red hat advisories RHBA-2018:0337RHSA-2015:2290

  • rubygem-rack OpenStack Cloud 5 1.5.2-9.6
  • rubygem-rack-1_4 SLE Module for Containers 12, Enterprise Storage 2, Enterprise Storage 1.0 1.4.5-8.10
  • rubygem-rack-1_4 WebYast 1.3, Studio Onsite 1.3, SLE Software Development Kit 11 SP4 +2 more 1.4.5-0.7.3
  • rubygem-rack SLE Software Development Kit 11 SP3, Lifecycle Management Server 1.3 1.1.6-0.11.2

suse advisories SUSE-SU-2015:2274-1SUSE-SU-2015:2190-1SUSE-SU-2015:1522-1SUSE-SU-2015:1888-1

  • rubygem-rack openSUSE Tumbleweed 3.1.18-1.3
  • rubygem-rack-2.2 openSUSE Tumbleweed 2.2.22-1.1
  • rubygem-rack openSUSE Tumbleweed 3.1.12-1.1
  • rubygem-rack-2.2 openSUSE Tumbleweed 2.2.11-1.1
  • rubygem-rack openSUSE Tumbleweed 2.2.3.1-1.1
  • rubygem-rack-2.2 openSUSE Tumbleweed 2.2.4-1.1
  • ruby3.2-rubygem-rack-2.2 openSUSE Tumbleweed 2.2.7-1.1
  • ruby3.2-rubygem-rack openSUSE Tumbleweed 3.0.7-1.2

opensuse advisories openSUSE-SU-2026:10358-1openSUSE-SU-2026:10286-1openSUSE-SU-2025:14875-1openSUSE-SU-2025:14811-1openSUSE-SU-2024:12119-1openSUSE-SU-2024:12397-1

Is CVE-2015-3225 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-3225 updated cvss 4.3

rubygem-rack: Potential Denial of Service Vulnerability in Rack normalize_params()

  • Red Hat CloudForms Management Engine 5 ruby193-rubygem-rack Red Hat OpenStack Foreman rubygem-rack Red Hat Enterprise MRG 2 rubygem-rack Red Hat OpenShift Enterprise 2 rubygem-rack Red Hat Software Collections ror40-rubygem-rack, ruby193-rubygem-rack, rh-ror41-rubygem-rack Red Hat Subscription Asset Manager rubygem-rack
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Server High Availability (v. 7) pcs 0.9.143-15.el7 Red Hat Enterprise Linux Server Resilient Storage (v. 7) pcs 0.9.143-15.el7
    fixed: vendor fix RHSA-2015:2290
  • Red Hat Satellite 6.3 tfm 3.2-11.el7sat, kobo 0.5.1-1.el7sat, gofer 2.7.7-3.el7sat, hiera 1.3.1-2.el7sat, SOAPpy 0.11.6-17.el7, facter 2.4.6-3.el7sat, +208 more Red Hat Satellite 6.3 - Puppet 4 puppetserver 2.8.0-1.el7sat, puppet-agent 1.10.9-1.el7sat, puppet-agent-oauth 0.5.1-2.el7sat Red Hat Satellite Capsule 6.3 tfm 3.2-11.el7sat, kobo 0.5.1-1.el7sat, gofer 2.7.7-3.el7sat, hiera 1.3.1-2.el7sat, SOAPpy 0.11.6-17.el7, facter 2.4.6-3.el7sat, +116 more Red Hat Satellite Capsule 6.3 - Puppet 4 puppetserver 2.8.0-1.el7sat, puppet-agent 1.10.9-1.el7sat, puppet-agent-oauth 0.5.1-2.el7sat
    fixed: vendor fix RHBA-2018:0337

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

7.94% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected packages

ecosystem package affected fixed in
rubygems rack
>=1.5.0, <1.5.4
>=1.6.0, <1.6.2
>=1.4.0, <1.4.6
1.5.4
1.6.2
1.4.6

Classification

Weakness
  • CWE-19 Data Processing Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.