CVE-2022-44570: High severity Rack Project Rack Ruby vulnerability
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.
Other sources
There is a possible denial of service vulnerability in the Range header parsing component of Rack. This vulnerability has been assigned the CVE identifier CVE-2022-44570.
Versions Affected: >= 1.5.0 Not affected: None. Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.0.1 Impact
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. Releases
The fixed releases are available at the normal locations. Workarounds
There are no feasible workarounds for this issue. Patches
To aid users who aren’t able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.
2-0-Fix-ReDoS-in-Rack-Utils.getbyteranges.patch - Patch for 2.0 series 2-1-Fix-ReDoS-in-Rack-Utils.getbyteranges.patch - Patch for 2.1 series 2-2-Fix-ReDoS-in-Rack-Utils.getbyteranges.patch - Patch for 2.2 series 3-0-Fix-ReDoS-in-Rack-Utils.getbyteranges.patch - Patch for 3.0 series
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2022-44570?
CVE-2022-44570 is a denial of service vulnerability in the Range header parsing component of Rack.
Which versions of Rack are affected by CVE-2022-44570?
Versions of Rack >= 1.5.0 are affected by CVE-2022-44570.
How severe is CVE-2022-44570?
CVE-2022-44570 has a severity rating of 7.5 (high).
How can I fix CVE-2022-44570?
To fix CVE-2022-44570, update to the fixed versions: 2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.0.1
Where can I find more information about CVE-2022-44570?
You can find more information about CVE-2022-44570 at the following references: [Link 1](https://discuss.rubyonrails.org/t/cve-2022-44570-possible-denial-of-service-vulnerability-in-racks-range-header-parsing/82125), [Link 2](https://www.debian.org/security/2023/dsa-5530), [Link 3](https://github.com/rack/rack/commit/52721ae0b730e3920ad5375dfd5a3ea9b4f9e359)