Summary
The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices.
Security Fix(es):
* grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass (CVE-2022-2601)
* grub2: Heap based out-of-bounds write when redering certain unicode sequences (CVE-2022-3775)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 15
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 9 | grub2-common | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-efi-aa64 | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-efi-aa64-cdboot | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-efi-aa64-modules | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-efi-x64 | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-efi-x64-cdboot | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-efi-x64-modules | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-pc | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-pc-modules | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-ppc64le | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-ppc64le-modules | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-tools | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-tools-efi | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-tools-extra | 1:2.06-46.el9_1.3.alma |
| AlmaLinux · 9 | grub2-tools-minimal | 1:2.06-46.el9_1.3.alma |
Vulnerabilities 2
-
High 8.6
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when c…
-
High 7.1
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and h…