# RHSA-2021:3058: Security update for 6 packages

RHSA-2021:3058, released August 10, 2021, fixes 1 CVE across 6 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2021-3058
- Platform: Linux
- Released: Aug 10, 2021
- Priority: High (Closes CVE-2021-27218, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2021:3058

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [glib2](https://patchblox.com/security/data/product/linux/glib2.md) | RHEL 8 | 0:2.56.4-10.el8_4.1 |
| [glib2-devel](https://patchblox.com/security/data/product/linux/glib2-devel.md) | RHEL 8 | 0:2.56.4-10.el8_4.1 |
| [glib2-doc](https://patchblox.com/security/data/product/linux/glib2-doc.md) | RHEL 8 | 0:2.56.4-10.el8_4.1 |
| [glib2-fam](https://patchblox.com/security/data/product/linux/glib2-fam.md) | RHEL 8 | 0:2.56.4-10.el8_4.1 |
| [glib2-static](https://patchblox.com/security/data/product/linux/glib2-static.md) | RHEL 8 | 0:2.56.4-10.el8_4.1 |
| [glib2-tests](https://patchblox.com/security/data/product/linux/glib2-tests.md) | RHEL 8 | 0:2.56.4-10.el8_4.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-27218](https://patchblox.com/security/data/cve/CVE-2021-27218.md) | High | glib2: GLib provides the core application building blocks for libraries and applications written in C | 7.5 | 0.0408 |  |

---

Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo