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CVE-2024-2312
Medium prioritySome fixes available 2 of 6
GRUB2 does not call the module fini functions on exit, leading to Debian/Ubuntu's peimage GRUB2 module leaving UEFI system table hooks after exit. This lead to a use-after-free condition, and could possibly lead to secure boot bypass.
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Fixed | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Fixed | Not affected | Not affected | Not affected | Not affected |
CVE-2024-1048
Medium priorityA flaw was found in the grub2-set-bootflag utility of grub2. After the fix of CVE-2019-14865, grub2-set-bootflag will create a temporary file with the new grubenv content and rename it to the original grubenv file. If the program...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Not affected | Not affected | Not affected | Not affected | Not affected |
CVE-2023-4001
Medium priorityAn authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file that contains the password hash for the GRUB password protection feature. An attacker capable...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Not affected | Not affected | Not affected | Not affected | Not affected |
CVE-2023-4693
Medium prioritySome fixes available 8 of 14
An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Fixed | Fixed | Fixed | Needs evaluation | Needs evaluation |
| grub2-unsigned | Not affected | Fixed | Fixed | Needs evaluation | Needs evaluation |
CVE-2023-4692
Medium prioritySome fixes available 10 of 15
An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Fixed | Fixed | Fixed | Needs evaluation | Needs evaluation |
| grub2-unsigned | Fixed | Fixed | Fixed | Needs evaluation | Needs evaluation |
CVE-2022-28736
Medium prioritySome fixes available 6 of 12
There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Not affected | Fixed | Fixed | Fixed | Vulnerable |
| grub2-unsigned | Not affected | Fixed | Fixed | Fixed | Vulnerable |
CVE-2022-28735
Medium prioritySome fixes available 6 of 12
The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Not affected | Fixed | Fixed | Fixed | Vulnerable |
| grub2-unsigned | Not affected | Fixed | Fixed | Fixed | Vulnerable |
CVE-2022-28734
Medium prioritySome fixes available 6 of 12
Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Not affected | Fixed | Fixed | Fixed | Vulnerable |
| grub2-unsigned | Not affected | Fixed | Fixed | Fixed | Vulnerable |
CVE-2022-28733
Medium prioritySome fixes available 6 of 12
Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Not affected | Fixed | Fixed | Fixed | Vulnerable |
| grub2-unsigned | Not affected | Fixed | Fixed | Fixed | Vulnerable |
CVE-2022-3775
Medium prioritySome fixes available 7 of 12
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected | Not affected |
| grub2-signed | Not affected | Fixed | Fixed | Fixed | Needs evaluation |
| grub2-unsigned | Not affected | Fixed | Fixed | Fixed | Needs evaluation |