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Search Results (365399 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2025-1125 | 2 Gnu, Redhat | 3 Grub2, Enterprise Linux, Openshift | 2026-06-29 | 7.8 High |
| 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 calculation to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result the hfsplus_open_compressed_real() function will write past of the internal buffer length. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution by-passing secure boot protections. | ||||
| CVE-2025-1118 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-29 | 4.4 Medium |
| A flaw was found in grub2. Grub's dump command is not blocked when grub is in lockdown mode, which allows the user to read any memory information, and an attacker may leverage this in order to extract signatures, salts, and other sensitive information from the memory. | ||||
| CVE-2025-0690 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-29 | 6.1 Medium |
| 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 overflow leading to a out-of-bounds write in the heap based buffer. This flaw may be leveraged to corrupt grub's internal critical data and secure boot bypass is not discarded as consequence. | ||||
| CVE-2025-0689 | 2 Gnu, Redhat | 3 Grub2, Enterprise Linux, Openshift | 2026-06-29 | 7.8 High |
| 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 which is not guaranteed. A crafted filesystem image may lead to a heap-based buffer overflow resulting in critical data to be corrupted, resulting in the risk of arbitrary code execution by-passing secure boot protections. | ||||
| CVE-2025-0686 | 2 Gnu, Redhat | 3 Grub2, Enterprise Linux, Openshift | 2026-06-29 | 6.4 Medium |
| 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 filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_romfs_read_symlink() may cause out-of-bounds writes when the calling grub_disk_read() function. This issue may be leveraged to corrupt grub's internal critical data and can result in arbitrary code execution by-passing secure boot protections. | ||||
| CVE-2025-0685 | 2 Gnu, Redhat | 3 Grub2, Enterprise Linux, Openshift | 2026-06-29 | 6.4 Medium |
| 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 of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_jfs_lookup_symlink() function will write past the internal buffer length during grub_jfs_read_file(). This issue can be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution, by-passing secure boot protections. | ||||
| CVE-2025-0684 | 2 Gnu, Redhat | 3 Grub2, Enterprise Linux, Openshift | 2026-06-29 | 6.4 Medium |
| 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 filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_reiserfs_read_symlink() will call grub_reiserfs_read_real() with a overflown length parameter, leading to a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and can result in arbitrary code execution, by-passing secure boot protections. | ||||
| CVE-2025-0678 | 2 Gnu, Redhat | 4 Grub2, Enterprise Linux, Openshift and 1 more | 2026-06-29 | 7.8 High |
| 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 of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the direct_read() will perform a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution, by-passing secure boot protections. | ||||
| CVE-2025-0677 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-29 | 6.4 Medium |
| 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, grub_malloc() may be called with a smaller value than needed. When further reading the data from the disk into the buffer, the grub_ufs_lookup_symlink() function will write past the end of the allocated size. An attack can leverage this by crafting a malicious filesystem, and as a result, it will corrupt data stored in the heap, allowing for arbitrary code execution used to by-pass secure boot mechanisms. | ||||
| CVE-2025-0622 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-29 | 6.4 Medium |
| 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 correctly exploited, this vulnerability may result in arbitrary code execution, eventually allowing the attacker to bypass secure boot protections. | ||||
| CVE-2025-0620 | 2 Redhat, Samba | 3 Enterprise Linux, Openshift, Samba | 2026-06-29 | 4.9 Medium |
| A flaw was found in Samba. The smbd service daemon does not pick up group membership changes when re-authenticating an expired SMB session. This issue can expose file shares until clients disconnect and then connect again. | ||||
| CVE-2025-0306 | 1 Redhat | 2 Enterprise Linux, Storage | 2026-06-29 | 7.4 High |
| A vulnerability was found in Ruby. The Ruby interpreter is vulnerable to the Marvin Attack. This attack allows the attacker to decrypt previously encrypted messages or forge signatures by exchanging a large number of messages with the vulnerable service. | ||||
| CVE-2023-32255 | 1 Redhat | 1 Enterprise Linux | 2026-06-29 | 5.3 Medium |
| A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion. | ||||
| CVE-2023-32253 | 1 Redhat | 1 Enterprise Linux | 2026-06-29 | 5.9 Medium |
| A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a denial of service. | ||||
| CVE-2024-45783 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-29 | 4.4 Medium |
| A flaw was found in grub2. When failing to mount an HFS+ grub, the hfsplus filesystem driver doesn't properly set an ERRNO value. This issue may lead to a NULL pointer access. | ||||
| CVE-2024-45782 | 2 Gnu, Redhat | 4 Grub2, Enterprise Linux, Openshift and 1 more | 2026-06-29 | 7.8 High |
| A flaw was found in the HFS filesystem. When reading an HFS volume's name at grub_fs_mount(), 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, impacting grub's sensitive data integrity and eventually leading to a secure boot protection bypass. | ||||
| CVE-2024-45781 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-29 | 6.7 Medium |
| 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 boot protections. | ||||
| CVE-2024-45780 | 1 Redhat | 2 Enterprise Linux, Openshift | 2026-06-29 | 6.7 Medium |
| 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 out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections. | ||||
| CVE-2024-45779 | 2 Gnu, Redhat | 3 Grub2, Enterprise Linux, Openshift | 2026-06-29 | 6 Medium |
| 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 heap of bounds read. As a consequence, sensitive data may be leaked, or grub2 will crash. | ||||
| CVE-2024-45778 | 2 Gnu, Redhat | 4 Grub2, Enterprise Linux, Openshift and 1 more | 2026-06-29 | 4.1 Medium |
| A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to crash. | ||||