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Fencer Intel
medium 5.0

CVE-2013-0183 json

Rack rubygems receiving excessively long lines triggers out-of-memory error

published 2013-03-01 13 y ago modified 2026-06-16 4 mo ago also GHSA-3pxh-h8hw-mj8w , EUVD-2017-0158

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

multipart/parser.rb in Rack 1.3.x before 1.3.8 and 1.4.x before 1.4.3 allows remote attackers to cause a denial of service (memory consumption and out-of-memory error) via a long string in a Multipart HTTP packet.

Patch / fix

  • rubygems rack 1.3.8, 1.4.3
  • ruby-rack Debian 14, Debian 13, Debian 12 1.4.1-2.1

debian advisories DEBIAN-CVE-2013-0183

  • ruby-rack Ubuntu 14.04 LTS 1.5.2-1

ubuntu advisories UBUNTU-CVE-2013-0183

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2013-0183 updated cvss 4.3

rubygem-rack: receiving excessively long lines triggers out-of-memory error

  • Red Hat OpenShift Enterprise 1 rubygem-rack, rubygem193-rack
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise MRG 2 rubygem-rack
    affected: no fix available
  • Red Hat CloudForms Cloud Engine for RHEL 6 Server rubygem-rdoc 3.8-6.el6cf, rubygem-rack 1.3.0-3.el6cf, rubygem-shoulda 2.11.3-5.el6cf, rubygem-delayed_job 2.1.4-3.el6cf, rubygem-rspec-rails 2.6.1-7.el6cf, rubygem-ruby_parser 2.0.4-6.el6cf, +4 more Red Hat CloudForms System Engine for RHEL 6 Server rubygem-rdoc 3.8-6.el6cf, rubygem-rack 1.3.0-3.el6cf, rubygem-delayed_job 2.1.4-3.el6cf, rubygem-ruby_parser 2.0.4-6.el6cf, rubygem-rails_warden 0.5.5-2.el6cf, ruby-nokogiri 1.5.0-0.9.beta4.el6cf, +2 more
    fixed: vendor fix RHSA-2013:0548
  • Red Hat Subscription Asset Manager for RHEL 6 Server quartz 2.1.5-4.el6_3, puppet 2.6.17-2.el6cf, katello 1.2.1-15h.el6_3, lucene3 3.6.1-10h.el6_3, candlepin 0.7.23-1.el6_3, thumbslug 0.0.28-1.el6_3, +27 more
    fixed: vendor fix RHSA-2013:0544

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

3.78% chance of exploitation in the next 30 days, higher than 90% 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
>=1.3.0, <1.3.8
>=1.4.0, <1.4.3
1.3.8
1.4.3

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-400 Uncontrolled Resource Consumption

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.