# ELSA-2022-6447: ruby-default-gems security update

ELSA-2022-6447, released September 15, 2022, fixes 3 CVEs in ruby-default-gems (version 0:2.7.6-138.module+el8.6.0+20740+358d9979). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/elsa-2022-6447
- Platform: Linux
- Released: Sep 15, 2022
- Priority: High (Closes CVE-2022-28739, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://linux.oracle.com/errata/ELSA-2022-6447.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [ruby-default-gems](https://patchblox.com/security/data/product/linux/ruby-default-gems.md) | ol 8 | 0:2.7.6-138.module+el8.6.0+20740+358d9979 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-28739](https://patchblox.com/security/data/cve/CVE-2022-28739.md) | High | ruby: Ruby is an extensible, interpreted, object-oriented, scripting language | 8.8 | 0.0437 |  |
| [CVE-2021-41817](https://patchblox.com/security/data/cve/CVE-2021-41817.md) | High | ruby: Ruby is an extensible, interpreted, object-oriented, scripting language | 7.7 | 0.0346 |  |
| [CVE-2021-41819](https://patchblox.com/security/data/cve/CVE-2021-41819.md) | High | ruby: Ruby is an extensible, interpreted, object-oriented, scripting language | 7.7 | 0.0315 |  |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo