CVE-2024-45779

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...

CVE-2024-45779

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...

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-2024-45779

CVE-2024-45779 (grub2 BFS integer overflow): Affects the BFS filesystem driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read, which can cause an integer overflow during file reading. This may trigger a heap-based bounds ...

CVE-2024-45779 Grub2: fs/bfs: integer overflow leads to heap oob read in the bfs parser

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...

CVE-2024-45779 Grub2: fs/bfs: integer overflow leads to heap oob read in the bfs parser

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...

CVE-2024-45780 Grub2: fs/tar: integer overflow causes heap oob write

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-2024-45780 Grub2: fs/tar: integer overflow causes heap oob write

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-2024-45780

Grub2 TAR handling flaw (CVE-2024-45780): when reading tar files, grub2 may overflow allocation size due to integer overflow, causing a heap OOB write and potentially bypassing secure boot. Affected: grub2; Root cause: unchecked allocation length; Impact: confidentiality/integrity/availability hi...

CVE-2025-0689 Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution

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...

CVE-2025-0689 Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution

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...

CVE-2025-1125 Grub2: fs/hfs: integer overflow may lead to heap based out-of-bounds write

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...

CVE-2025-1125 Grub2: fs/hfs: integer overflow may lead to heap based out-of-bounds write

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...

Important Photon OS Security Update - PHSA-2025-5.0-0481

Updates of 'grub2' packages of Photon OS have been released...

Amazon Linux 2 : grub2 (ALAS-2025-2756)

The version of grub2 installed on the remote host is prior to 2.06-14. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2756 advisory. GNU GRUB aka GRUB2 through 2.12 has a heap-based buffer overflow in fs/hfs.c via crafted sblock data in an HFS filesystem...

Amazon Linux 2023 : grub2-common, grub2-efi-aa64, grub2-efi-aa64-cdboot (ALAS2023-2025-847)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-847 advisory. GNU GRUB aka GRUB2 through 2.12 has a heap-based buffer overflow in fs/hfs.c via crafted sblock data in an HFS filesystem. CVE-2024-56737 Tenable has extracted the preceding description block directly...

Medium: grub2

Issue Overview: GNU GRUB aka GRUB2 through 2.12 has a heap-based buffer overflow in fs/hfs.c via crafted sblock data in an HFS filesystem. CVE-2024-56737 Affected Packages: grub2 Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the difference...

CVE-2025-0690 Grub2: read: integer overflow may lead to out-of-bounds write

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...

CVE-2025-0690 Grub2: read: integer overflow may lead to out-of-bounds write

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...

SUSE SLES12 Security Update : grub2 (SUSE-SU-2025:0629-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0629-1 advisory. - CVE-2024-45781: Fixed strcpy overflow in ufs. bsc1233617 - CVE-2024-56737: Fixed a heap-based buffer overflow in hfs. bsc1234958 -...