# CVE-2022-30123: ruby-rack: A sequence injection vulnerability exists in Rack &lt;2.0.9.1, &lt;2.1.4.1 and &lt;2.2.3.1 which could allow is a pos...

CVE-2022-30123 is fixed in ruby-rack on 1 platform, first by ruby-rack 1.6.4-4ubuntu0.2+esm2, released December 5, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-30123
- Priority: High
- CVSS: 10.0 (Medium)
- EPSS: 0.0196
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 5, 2022

## Description

A sequence injection vulnerability exists in Rack &lt;2.0.9.1, &lt;2.1.4.1 and &lt;2.2.3.1 which could allow is a possible shell escape in the Lint and CommonLogger components of Rack.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ruby-rack Debian 12.15 (bookworm) | 2.2.4-1 | [DEBIAN-CVE-2022-30123](https://patchblox.com/security/data/fix/linux/debian-cve-2022-30123.md) | Dec 5, 2022 |
| Linux | ruby-rack Debian 13.5 (trixie) | 2.2.4-1 | [DEBIAN-CVE-2022-30123](https://patchblox.com/security/data/fix/linux/debian-cve-2022-30123.md) | Dec 5, 2022 |
| Linux | ruby-rack Debian 14 | 2.2.4-1 | [DEBIAN-CVE-2022-30123](https://patchblox.com/security/data/fix/linux/debian-cve-2022-30123.md) | Dec 5, 2022 |
| Linux | ruby-rack Ubuntu 18.04.6 LTS (bionic) | 1.6.4-4ubuntu0.2+esm2 | [ruby-rack 1.6.4-4ubuntu0.2+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ruby-rack-1.6.4-4ubuntu0.2-esm2.md) | Dec 5, 2022 |
| Linux | ruby-rack Ubuntu 20.04 LTS (focal) | 2.0.7-2ubuntu0.1+esm2 | [ruby-rack 2.0.7-2ubuntu0.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ruby-rack-2.0.7-2ubuntu0.1-esm2.md) | Dec 5, 2022 |
| Linux | ruby-rack Ubuntu 22.04.1 LTS (jammy) | 2.1.4-5ubuntu1+esm2 | [ruby-rack 2.1.4-5ubuntu1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ruby-rack-2.1.4-5ubuntu1-esm2.md) | Dec 5, 2022 |

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