Linux · 
Ubuntu · Package update · July 19, 2023
Ubuntu · Package update · July 19, 2023grub-efi-amd64 2.06-2ubuntu14.1: grub-efi-amd64 2.06-2ubuntu14.1 for Ubuntu 18.04.6 LTS (bionic)
grub-efi-amd64 2.06-2ubuntu14.1, released July 19, 2023, fixes 9 CVEs in grub-efi-amd64. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.
UrgentUnsupported product
CVEs closed
9
1 rated Critical
Exploited
0
None reported
Highest CVSS
8.6
Base score, 0 to 10
Highest EPSS
0.0127
70th percentile
Priority of the 9 CVEs
Patch now 0
Urgent 1
High 8
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| grub-efi-amd64 | Ubuntu 18.04.6 LTS (bionic) | 2.06-2ubuntu14.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2022-3775 | Redhat: CVE-2022-3775 grub2 - Heap based out-of-bounds write when rendering certain Unicode sequences | 8.2 | 0.0104 | Exploitation Less Likely |
| High | CVE-2022-28733 | grub-efi-amd64: Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in gru... | 8.1 | 0.0127 | None reported |
| High | CVE-2022-28734 | kernel-uek: ELSA-2025-20480: Unbreakable Enterprise kernel security update (IMPORTANT) | 8.1 | 0.0112 | None reported |
| High | CVE-2022-2601 | 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 | Exploitation Less Likely |
| High | CVE-2021-3696 | kernel-uek: ELSA-2025-20480: Unbreakable Enterprise kernel security update (IMPORTANT) | 8.1 | 0.0048 | None reported |
| High | CVE-2021-3695 | kernel-uek: ELSA-2025-20480: Unbreakable Enterprise kernel security update (IMPORTANT) | 8.1 | 0.0048 | None reported |
| High | CVE-2021-3697 | kernel-uek: ELSA-2025-20480: Unbreakable Enterprise kernel security update (IMPORTANT) | 8.1 | 0.0047 | None reported |
| High | CVE-2022-28735 | grub-efi-arm64: The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems | 8.1 | 0.0032 | None reported |
| High | CVE-2022-28736 | grub-efi-arm64: There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up... | 8.1 | 0.0029 | None reported |
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