# RLSA-2023:0049: grub2 security update

RLSA-2023:0049, released January 9, 2023, fixes 2 CVEs in grub2 (version 1:2.02-142.el8_7.1.rocky.0.2). None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/rlsa-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://errata.rockylinux.org/RLSA-2023:0049

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [grub2](https://patchblox.com/security/data/product/linux/grub2.md) | rocky 8 | 1:2.02-142.el8_7.1.rocky.0.2 |

## 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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