17 results · Feed
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Unscored —
A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be writte…
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Unscored —
If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel witho…
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Unscored —CVE-2021-20233 Public exploit
A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length cal…
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Unscored —
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a he…
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Unscored —CVE-2020-25632 Public exploit
A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as …
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Unscored —
A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very l…
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Unscored —CVE-2020-14372 Public exploit
A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Se…
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Unscored —
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line i…
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Unscored —
A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an …
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Medium 5.7
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a s…
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Medium 5.7
There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at ma…
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Unscored —CVE-2020-10713 Public exploit
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 ver…
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Unscored —
There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link w…
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Unscored —
In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requeste…
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Medium 5.7
GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.
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 overflo…
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Medium 6.4
GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim
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 boot…
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Medium 6.4
GRUB2 contains a race condition leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing.
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 restr…