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-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...

UBUNTU-CVE-2025-0690

The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it's possible to make this variable to...

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-2025-0622

A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to a use-after-free vulnerability. If...

UBUNTU-CVE-2024-45781

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 data integrity issues and eventually allowing an attacker to circumvent secure...

CVE-2025-0622

A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to a use-after-free vulnerability. If...

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...

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...

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-2025-0686

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...

UBUNTU-CVE-2025-0684

A flaw was found in grub2. When performing a symlink lookup from a reiserfs filesystem, grub's reiserfs fs 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 filesyste...

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...

PT-2025-6796

Name of the Vulnerable Software and Affected Versions Grub2 affected versions not specified Description A flaw was found in command/gpg, where hooks created by loaded modules are not removed when the related module is unloaded. This allows an attacker to force Grub2 to call the hooks once the...

PT-2025-7467

Name of the Vulnerable Software and Affected Versions No specific software or versions mentioned. Description Integer overflow may lead to out-of-bounds write. Recommendations At the moment, there is no information about a newer version that contains a fix for this issue...

GRUB 缓冲区错误漏洞

GNU GRUB is a Linux system boot program from the GNU community. GRUB suffers from a buffer error vulnerability that stems from an integer overflow not checked when reading .mo files, which can lead to out-of-bounds reads and writes and bypass secure boot...

GNU GRUB 安全漏洞

GNU GRUB is a Linux system boot program from the GNU community. A security vulnerability exists in GNU GRUB, which stems from the dump command not being in a locked state when secure boot is enabled in the commands/dump module...

PT-2025-7459

Name of the Vulnerable Software and Affected Versions grub2 affected versions not specified Description 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...

PT-2025-7461

Name of the Vulnerable Software and Affected Versions grub2 affected versions not specified Description 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...

PT-2025-7419

Name of the Vulnerable Software and Affected Versions grub2 affected versions not specified Description 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 an out-of-bound write. This...