--- title: "CVE-2022-44570\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2022-44570?format=md keywords: index, follow --- # CVE-2022-44570 Publication date 9 February 2023 Last updated 25 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **7.5 · High** [Score breakdown](https://ubuntu.com/security/CVE-2022-44570?format=md#impact-score) Toggle side navigation ## Description 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. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | ruby-rack | 25.04 plucky | Not affected | | 24.10 oracular | Not affected | | 24.04 LTS noble | Not affected | | 23.10 mantic | Not affected | | 23.04 lunar | Not affected | | 22.10 kinetic | Ignored end of life, was needed | | 22.04 LTS jammy | Fixed 2.1.4-5ubuntu1.1 | | 20.04 LTS focal | Fixed 2.0.7-2ubuntu0.1+esm3 Ubuntu Pro | | 18.04 LTS bionic | Fixed 1.6.4-4ubuntu0.2+esm4 Ubuntu Pro | | 16.04 LTS xenial | Fixed 1.6.4-3ubuntu0.2+esm4 Ubuntu Pro | | 14.04 LTS trusty | Fixed 1.5.2-3+deb8u3ubuntu1~esm6 Ubuntu Pro | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2022-44570?format=md#patch-details) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | ruby-rack | * Upstream: [52721ae](https://github.com/rack/rack/commit/52721ae0b730e3920ad5375dfd5a3ea9b4f9e359) * Upstream: [f66ef5c](https://github.com/rack/rack/commit/f66ef5c8255dcea82c1b2665fc9ab948b76bb437) * Upstream: [f6d4f52](https://github.com/rack/rack/commit/f6d4f528f2df1318a6612845db0b59adc7fe8fc1) | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 7.5 · High * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | Low | | Privileges required | None | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | None | | Integrity impact | None | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 7.5 · High | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-44570) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-44570) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-44570) * [Debian](https://security-tracker.debian.org/tracker/CVE-2022-44570) ### Related Ubuntu Security Notices (USN) + [USN-5910-1](https://usn.ubuntu.com/USN-5910-1) + Rack vulnerabilities + 2 March 2023 + [USN-7036-1](https://usn.ubuntu.com/USN-7036-1) + Rack vulnerabilities + 26 September 2024 ### Other references * * * *