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Some fixes available 12 of 13
A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary...
3 affected packages
grub2-signed, grub2-unsigned, grub2
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2-signed | Not affected | Not affected | Fixed | Fixed |
| grub2-unsigned | Not affected | Not affected | Fixed | Fixed |
| grub2 | Not affected | Not affected | Not affected | Not affected |
Some fixes available 10 of 12
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Fixed | Fixed |
| grub2-signed | Not affected | Not affected | Fixed | Fixed |
| grub2-unsigned | Not affected | Not affected | Fixed | Fixed |
Some fixes available 10 of 12
There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Fixed | Fixed |
| grub2-signed | Not affected | Not affected | Fixed | Fixed |
| grub2-unsigned | Not affected | Not affected | Fixed | Fixed |
Some fixes available 10 of 12
There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Fixed | Fixed |
| grub2-signed | Not affected | Not affected | Fixed | Fixed |
| grub2-unsigned | Not affected | Not affected | Fixed | Fixed |
Some fixes available 10 of 12
In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Fixed | Fixed |
| grub2-signed | Not affected | Not affected | Fixed | Fixed |
| grub2-unsigned | Not affected | Not affected | Fixed | Fixed |
Some fixes available 10 of 13
A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted...
3 affected packages
grub2, grub2-signed, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Not affected | Not affected | Fixed | Fixed |
| grub2-signed | Not affected | Not affected | Fixed | Fixed |
| grub2-unsigned | Not affected | Not affected | Fixed | Fixed |
Some fixes available 45 of 47
Integer overflow in the LZO algorithm variant in Oberhumer liblzo2 and lzo-2 before 2.07 on 32-bit platforms might allow remote attackers to execute arbitrary code via a crafted Literal Run.
5 affected packages
grub2, grub2-signed, krfb, lzo2, grub2-unsigned
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| grub2 | Fixed | Fixed | Fixed | Not affected |
| grub2-signed | Not affected | Not affected | Fixed | Not affected |
| krfb | Fixed | Fixed | Fixed | Fixed |
| lzo2 | Fixed | Fixed | Fixed | Fixed |
| grub2-unsigned | Not affected | Not affected | Fixed | Not affected |