# RHSA-2023:0049: Security update for 18 packages

RHSA-2023:0049, released January 9, 2023, fixes 2 CVEs across 18 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2023-0049
- Platform: Linux
- Released: Jan 9, 2023
- Priority: Urgent (Closes CVE-2022-3775, rated Critical)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2023:0049

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [grub2-common](https://patchblox.com/security/data/product/linux/grub2-common.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-aa64](https://patchblox.com/security/data/product/linux/grub2-efi-aa64.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-aa64-cdboot](https://patchblox.com/security/data/product/linux/grub2-efi-aa64-cdboot.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-aa64-modules](https://patchblox.com/security/data/product/linux/grub2-efi-aa64-modules.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-ia32](https://patchblox.com/security/data/product/linux/grub2-efi-ia32.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-ia32-cdboot](https://patchblox.com/security/data/product/linux/grub2-efi-ia32-cdboot.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-ia32-modules](https://patchblox.com/security/data/product/linux/grub2-efi-ia32-modules.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-x64](https://patchblox.com/security/data/product/linux/grub2-efi-x64.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-x64-cdboot](https://patchblox.com/security/data/product/linux/grub2-efi-x64-cdboot.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-efi-x64-modules](https://patchblox.com/security/data/product/linux/grub2-efi-x64-modules.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-pc](https://patchblox.com/security/data/product/linux/grub2-pc.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-pc-modules](https://patchblox.com/security/data/product/linux/grub2-pc-modules.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-ppc64le](https://patchblox.com/security/data/product/linux/grub2-ppc64le.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-ppc64le-modules](https://patchblox.com/security/data/product/linux/grub2-ppc64le-modules.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-tools](https://patchblox.com/security/data/product/linux/grub2-tools.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-tools-efi](https://patchblox.com/security/data/product/linux/grub2-tools-efi.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-tools-extra](https://patchblox.com/security/data/product/linux/grub2-tools-extra.md) | RHEL 8 | 1:2.02-142.el8_7.1 |
| [grub2-tools-minimal](https://patchblox.com/security/data/product/linux/grub2-tools-minimal.md) | RHEL 8 | 1:2.02-142.el8_7.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-3775](https://patchblox.com/security/data/cve/CVE-2022-3775.md) | Urgent | Redhat: CVE-2022-3775 grub2 - Heap based out-of-bounds write when rendering certain Unicode sequences | 8.2 | 0.0104 |  |
| [CVE-2022-2601](https://patchblox.com/security/data/cve/CVE-2022-2601.md) | High | Redhat: CVE-2022-2601 grub2 - Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass | 8.6 | 0.0052 |  |

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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