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purl | pkg:deb/ubuntu/grub2@1.98%2B20100722-1ubuntu1 |
Next non-vulnerable version | 2.04-1ubuntu26.8 |
Latest non-vulnerable version | 2.04-1ubuntu26.8 |
Risk | 4.0 |
Vulnerability | Summary | Fixed by |
---|---|---|
VCID-72b4-1brz-aaaj
Aliases: CVE-2014-4607 |
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. |
Affected by 0 other vulnerabilities. |
VCID-785a-4chv-aaaa
Aliases: CVE-2017-9763 |
The grub_ext2_read_block function in fs/ext2.c in GNU GRUB before 2013-11-12, as used in shlr/grub/fs/ext2.c in radare2 1.5.0, allows remote attackers to cause a denial of service (excessive stack use and application crash) via a crafted binary file, related to use of a variable-size stack array. |
Affected by 9 other vulnerabilities. |
VCID-8pey-45pe-aaac
Aliases: CVE-2013-4577 |
A certain Debian patch for GNU GRUB uses world-readable permissions for grub.cfg, which allows local users to obtain password hashes, as demonstrated by reading the password_pbkdf2 directive in the file. |
Affected by 11 other vulnerabilities. |
VCID-8tbe-4tn3-aaaq
Aliases: CVE-2020-15706 |
GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions. |
Affected by 1 other vulnerability. |
VCID-ff6w-cn4h-aaak
Aliases: CVE-2020-14311 |
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 memory allocation with subsequent heap-based buffer overflow. |
Affected by 1 other vulnerability. |
VCID-ge7w-e41m-aaaf
Aliases: CVE-2020-10713 |
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 or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. |
Affected by 1 other vulnerability. |
VCID-hawm-atv4-aaaf
Aliases: CVE-2020-15705 |
GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions. |
Affected by 1 other vulnerability. |
VCID-k3pj-w6ft-aaan
Aliases: CVE-2020-14309 |
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 allocation further causing a heap-based buffer overflow with attacker controlled data. |
Affected by 1 other vulnerability. |
VCID-p6g6-runx-aaam
Aliases: CVE-2015-8370 |
Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grub_username_get function in grub-core/normal/auth.c or the (2) grub_password_get function in lib/crypto.c, which trigger an "Off-by-two" or "Out of bounds overwrite" memory error. |
Affected by 10 other vulnerabilities. |
VCID-qfx7-jwpk-aaab
Aliases: CVE-2020-15707 |
Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions. |
Affected by 1 other vulnerability. |
VCID-umf1-9uj9-aaap
Aliases: CVE-2020-14308 |
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 cause possible integrity, confidentiality and availability impacts during the boot process. |
Affected by 1 other vulnerability. |
VCID-wwrq-gj72-aaan
Aliases: CVE-2020-14310 |
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 value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow. |
Affected by 1 other vulnerability. |
Vulnerability | Summary | Aliases |
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This package is not known to fix vulnerabilities. |
Date | Actor | Action | Vulnerability | Source | VulnerableCode Version |
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