CVSS: 4.1EPSS: 0%CPEs: 16EXPL: 0CVE-2024-45778 – Grub2: fs/bfs: integer overflow in the bfs parser.
https://notcve.org/view.php?id=CVE-2024-45778
19 Feb 2025 — 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. This update for grub2 fixes the following issues. Fixed strcpy overflow in ufs. Fixed a heap-based buffer overflow in hfs. • https://access.redhat.com/security/cve/CVE-2024-45778 • CWE-190: Integer Overflow or Wraparound •
CVSS: 6.0EPSS: 0%CPEs: 18EXPL: 0CVE-2024-45779 – Grub2: fs/bfs: integer overflow leads to heap oob read in the bfs parser
https://notcve.org/view.php?id=CVE-2024-45779
19 Feb 2025 — 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. This update for grub2 fixes the following issues. • https://access.redhat.com/security/cve/CVE-2024-45779 • CWE-125: Out-of-bounds Read CWE-190: Integer Overflow or Wraparound •
CVSS: 6.7EPSS: 0%CPEs: 16EXPL: 0CVE-2024-45780 – Grub2: fs/tar: integer overflow causes heap oob write
https://notcve.org/view.php?id=CVE-2024-45780
19 Feb 2025 — 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. • https://access.redhat.com/security/cve/CVE-2024-45780 • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 19EXPL: 0CVE-2024-45782 – Grub2: fs/hfs: strcpy() using the volume name (fs/hfs.c:382)
https://notcve.org/view.php?id=CVE-2024-45782
19 Feb 2025 — 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. This update for grub2 fixes the following issues. Fixed strcpy overflow in ufs. • https://access.redhat.com/security/cve/CVE-2024-45782 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVSS: 7.6EPSS: 0%CPEs: 27EXPL: 0CVE-2025-0624 – Grub2: net: out-of-bounds write in grub_net_search_config_file()
https://notcve.org/view.php?id=CVE-2025-0624
19 Feb 2025 — 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 grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot inf... • https://access.redhat.com/security/cve/CVE-2025-0624 • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 19EXPL: 0CVE-2025-0678 – Grub2: squash4: integer overflow may lead to heap based out-of-bounds write when reading data
https://notcve.org/view.php?id=CVE-2025-0678
19 Feb 2025 — 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 d... • https://access.redhat.com/security/cve/CVE-2025-0678 • CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •
CVSS: 6.4EPSS: 0%CPEs: 16EXPL: 0CVE-2025-0684 – Grub2: reiserfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data
https://notcve.org/view.php?id=CVE-2025-0684
19 Feb 2025 — 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... • https://access.redhat.com/security/cve/CVE-2025-0684 • CWE-787: Out-of-bounds Write •
CVSS: 6.4EPSS: 0%CPEs: 16EXPL: 0CVE-2025-0685 – Grub2: jfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading data
https://notcve.org/view.php?id=CVE-2025-0685
19 Feb 2025 — 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 buffe... • https://access.redhat.com/security/cve/CVE-2025-0685 • CWE-787: Out-of-bounds Write •
CVSS: 6.4EPSS: 0%CPEs: 16EXPL: 0CVE-2025-0686 – Grub2: romfs: integer overflow when handling symlinks may lead to heap based out-of-bounds write when reading dat
https://notcve.org/view.php?id=CVE-2025-0686
19 Feb 2025 — 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... • https://access.redhat.com/security/cve/CVE-2025-0686 • CWE-787: Out-of-bounds Write •
CVSS: 6.4EPSS: 0%CPEs: 16EXPL: 0CVE-2025-0689 – Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution
https://notcve.org/view.php?id=CVE-2025-0689
19 Feb 2025 — 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 protecti... • https://access.redhat.com/security/cve/CVE-2025-0689 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •