DEBIAN-CVE-2024-45782

A flaw was found in the HFS filesystem. When reading an HFS volume's name at grubfsmount, the HFS filesystem driver performs a strcpy using the user-provided volume name as input without properly validating the volume name's length. This issue may read to a heap-based out-of-bounds writer,...

DEBIAN-CVE-2025-1125

When reading data from a hfs filesystem, grub's hfs filesystem module uses user-controlled parameters from the filesystem metadata to calculate the internal buffers size, however it misses to properly check for integer overflows. A maliciouly crafted filesystem may lead some of those buffer size...

DEBIAN-CVE-2025-0689

When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smaller than the allocated buffer size whi...

AZL-57552 CVE-2024-45779 affecting package grub2 for versions less than 2.06-15

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 cause an integer overflow during the file reading, leading to a he...

A dive into the Rockchip Bootloader

TL;DR Rockchip has a structured sequence of bootloaders. Using various plugs can allow access to the MCU’s RAM and storage. There are many utilities to allow reading of information from the MCU. Use this guide to access and reverse engineer bootloaders. Introduction Rockchip are a Chinese company...

SUSE CVE-2024-45777

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grubgettextgetstrfromposition may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the...

SUSE CVE-2024-45782

A flaw was found in the HFS filesystem. When reading an HFS volume's name at grubfsmount, the HFS filesystem driver performs a strcpy using the user-provided volume name as input without properly validating the volume name's length. This issue may read to a heap-based out-of-bounds writer,...

SUSE CVE-2025-0677

A flaw was found in grub2. When performing a symlink lookup, the grub's UFS module checks the inode's data size to allocate the internal buffer to read the file content, however, it fails to check if the symlink data size has overflown. When this occurs, grubmalloc may be called with a smaller...

SUSE CVE-2025-0686

A flaw was found in grub2. When performing a symlink lookup from a romfs filesystem, grub's romfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted...

DEBIAN-CVE-2024-57255

An integer overflow in sqfsresolvesymlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite...

UBUNTU-CVE-2024-45777

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grubgettextgetstrfromposition may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the...

UBUNTU-CVE-2025-0685

A flaw was found in grub2. When reading data from a jfs filesystem, grub's jfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciouly crafted filesystem may lead some o...

UBUNTU-CVE-2024-45780

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 length to overflow with a crafted tar file, leading to a heap...

UBUNTU-CVE-2025-0678

A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted filesystem may lead some ...

UBUNTU-CVE-2025-0624

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grubstrcpy function. During this step, it fails to consider the environment variable length...

DENX Software Engineering Das U-Boot 安全漏洞

DENX Software Engineering Das U-Boot is a Universal Bootloader from DENX Software Engineering, Germany. A security vulnerability exists in versions prior to DENX Software Engineering Das U-Boot 2025.01-rc1, which stems from a heap memory corruption in squashfs directory listings due to a failure ...

GNU GRUB 缓冲区错误漏洞

GNU GRUB2 is a Linux system bootloader from the GNU community. GNU GRUB2 suffers from a buffer overflow vulnerability that stems from the jfs file system module not properly checking for integer overflow issues, which can be exploited by an attacker to cause a heap out-of-bounds write issue that...

DENX Software Engineering Das U-Boot 安全漏洞

DENX Software Engineering Das U-Boot is a Universal Bootloader from DENX Software Engineering, Germany. A security vulnerability exists in versions prior to DENX Software Engineering Das U-Boot 2025.01-rc1, which stems from an integer overflow in symbolic link parsing that results in a memory...

GNU GRUB 安全漏洞

GNU GRUB is a Linux system boot program from the GNU community. GNU GRUB suffers from an out-of-bounds write vulnerability, which stems from an unvalidated UFS symbolic link length, that can be exploited by attackers to inject malicious code and tamper with critical data in memory...

GNU GRUB 缓冲区错误漏洞

GNU GRUB2 is an open source bootloader used to load the operating system kernel when the computer boots. GNU GRUB2 suffers from a buffer overflow vulnerability that originates from an integer overflow when reading data from the squash4 file system. An attacker can exploit this vulnerability to...