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A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing...
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation...
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may...
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to crash.
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker...
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound...
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls grub_arg_list_alloc() to allocate memory for the grub's argument list. However, it fails to check in case the memory allocation fails. Once the allocation...
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive...
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
GNU GRUB (aka GRUB2) through 2.12 has a heap-based buffer overflow in fs/hfs.c via crafted sblock data in an HFS filesystem.
3 affected packages
grub2, grub2-unsigned, grub2-signed
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Not affected | Not affected |
| grub2-unsigned | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |
| grub2-signed | Needs evaluation | Needs evaluation | Needs evaluation | Needs evaluation |