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Fencer Intel
high 7.5

CVE-2022-44570 json

Denial of service via header parsing in Rack

published 3y ago modified 4mo ago also GHSA-65f5-mfpf-vfhj , EUVD-2023-0353

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0. A Carefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be impacted.

Patch / fix

  • rubygems rack 2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.4.1
  • rack rack 2.0.9.2, 2.1.4.2, 2.2.6.1, 3.0.4.1
  • ruby-rack Debian 14, Debian 13, Debian 12 2.2.4-3

debian advisories DEBIAN-CVE-2022-44570

  • ruby-rack Ubuntu 22.04 LTS 2.1.4-5ubuntu1.1
  • ruby-rack Ubuntu Pro 14.04 LTS 1.5.2-3+deb8u3ubuntu1~esm6
  • ruby-rack Ubuntu Pro 16.04 LTS 1.6.4-3ubuntu0.2+esm4
  • ruby-rack Ubuntu Pro 18.04 LTS 1.6.4-4ubuntu0.2+esm4
  • ruby-rack Ubuntu Pro 20.04 LTS 2.0.7-2ubuntu0.1+esm3
  • ruby-rack Ubuntu Pro 22.04 LTS 2.1.4-5ubuntu1+esm3

ubuntu advisories UBUNTU-CVE-2022-44570

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

  • foreman satellite utils 6.14, satellite capsule 6.14, satellite 6.14 3.7.0.9-1.el8sat
  • foreman-cli satellite utils 6.14, satellite 6.14 3.7.0.9-1.el8sat
  • foreman-ec2 satellite 6.14 3.7.0.9-1.el8sat
  • rubygem-git satellite 6.14 1.18.0-1.el8sat
  • puppet-agent satellite capsule 6.14, satellite 6.14 7.26.0-3.el8sat
  • puppetserver satellite capsule 6.14, satellite 6.14 7.11.0-1.el8sat
  • rubygem-rack satellite capsule 6.14, satellite 6.14 2.2.7-1.el8sat
  • foreman-ovirt satellite 6.14 3.7.0.9-1.el8sat

red hat advisories RHSA-2023:6818

  • rubygem-rack OpenStack Cloud Crowbar 9, OpenStack Cloud Crowbar 8 1.6.13-3.16.1
  • rubygem-rack SLE High Availability Extension 15 SP4, SLE High Availability Extension 15 SP3, SLE High Availability Extension 15 SP2 +2 more 2.0.8-150000.3.12.1

suse advisories SUSE-SU-2023:0649-1SUSE-SU-2023:0276-1

  • 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 3.0.4.1-1.1
  • rubygem-rack-2.2 openSUSE Tumbleweed 2.2.6.2-1.1
  • 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-2024:12633-1openSUSE-SU-2024:12634-1

Is CVE-2022-44570 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-2022-44570 updated cvss 7.5

rubygem-rack: denial of service in Content-Disposition parsing

  • Red Hat Satellite 6.14 for RHEL 8 rubygem-rack 2.2.7-1.el8sat
    fixed: vendor fix RHSA-2023:6818
  • Red Hat Satellite 6.14 for RHEL 8 cjson 1.7.14-5.el8sat, katello 4.9.0-1.el8sat, libsolv 0.7.22-4.el8pc, libcomps 0.1.18-4.el8pc, python-idna 3.3-2.el8pc, candlepin 4.3.1-1.el8sat, +668 more
    not affected: vulnerable code not present

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

1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
rubygems rack
>=1.5.0, <2.0.9.2
>=2.1.0.0, <2.1.4.2
>=2.2.0.0, <2.2.6.2
>=3.0.0.0, <3.0.4.1
2.0.9.2
2.1.4.2
2.2.6.2
3.0.4.1

Affected products

  • n/a https://github.com/rack/rack

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-1333 Inefficient Regular Expression Complexity

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.