# CVE-2022-44570: ruby-rack: A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0

CVE-2022-44570 is fixed in ruby-rack on 1 platform, first by ruby-rack 1.6.4-4ubuntu0.2+esm4, released February 9, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-44570
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0163
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 9, 2023

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ruby-rack Debian 12.15 (bookworm) | 2.2.4-3 | [DEBIAN-CVE-2022-44570](https://patchblox.com/security/data/fix/linux/debian-cve-2022-44570.md) | Feb 9, 2023 |
| Linux | ruby-rack Debian 13.5 (trixie) | 2.2.4-3 | [DEBIAN-CVE-2022-44570](https://patchblox.com/security/data/fix/linux/debian-cve-2022-44570.md) | Feb 9, 2023 |
| Linux | ruby-rack Debian 14 | 2.2.4-3 | [DEBIAN-CVE-2022-44570](https://patchblox.com/security/data/fix/linux/debian-cve-2022-44570.md) | Feb 9, 2023 |
| Linux | ruby-rack Ubuntu 18.04.6 LTS (bionic) | 1.6.4-4ubuntu0.2+esm4 | [ruby-rack 1.6.4-4ubuntu0.2+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ruby-rack-1.6.4-4ubuntu0.2-esm4.md) | Feb 9, 2023 |
| Linux | ruby-rack Ubuntu 20.04 LTS (focal) | 2.0.7-2ubuntu0.1+esm3 | [ruby-rack 2.0.7-2ubuntu0.1+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ruby-rack-2.0.7-2ubuntu0.1-esm3.md) | Feb 9, 2023 |
| Linux | ruby-rack Ubuntu 22.04.1 LTS (jammy) | 2.1.4-5ubuntu1+esm3 | [ruby-rack 2.1.4-5ubuntu1+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ruby-rack-2.1.4-5ubuntu1-esm3.md) | Feb 9, 2023 |

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