Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from ext4 not properly handling reserved GDT blocks when resizing the filesystem, which could lead to null pointer...

USN-7298-1 linux, linux-lts-xenial vulnerability

Attila Szász discovered that the HFS+ file system implementation in the Linux Kernel contained a heap overflow vulnerability. An attacker could use a specially crafted file system image that, when mounted, could cause a denial of service system crash or possibly execute arbitrary code...

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...

Linux kernel fs/netfs/fscache_cookie DoS

The vulnerability of the fs/netfs/fscachecookie component of the Linux operating system’s kernel is related to the assignment of the NULL pointer. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2024-57262

In barebox before 2025.01.0, ext4fsreadsymlink has an integer overflow for zalloc adding one to an le32 variable via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite, a related issue to CVE-2024-57256...

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 Issue Correction: Run dnf update grub2 --releasever 2023.6.20250218 to update your system. New Packages: aarch64: ...

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 Issue Correction: Run dnf update grub2 --releasever 2023.6.20250218 or dnf update --advisory ALAS2023-2025-847...

SUSE CVE-2024-45778

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...

SUSE 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...

SUSE 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 ...

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...

SUSE 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...

SUSE CVE-2025-24965

crun is an open source OCI Container Runtime fully written in C. In affected versions A malicious container image could trick the krun handler into escaping the root filesystem, allowing file creation or modification on the host. No special permissions are needed, only the ability for the current...

SUSE SLES15 Security Update : grub2 (SUSE-SU-2025:0587-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0587-1 advisory. - CVE-2024-45781: Fixed strcpy overflow in ufs. bsc1233617 - CVE-2024-56737: Fixed a heap-based buffer overflow in hfs. bsc1234958 ...

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...

CVE-2025-24965

crun is an open source OCI Container Runtime fully written in C. In affected versions A malicious container image could trick the krun handler into escaping the root filesystem, allowing file creation or modification on the host. No special permissions are needed, only the ability for the current...

CVE-2024-57257

A stack consumption issue in sqfssize in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with deep symlink nesting. Mitigation Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising...

CVE-2024-57258

A flaw was found in Das U-Boot. This vulnerability allows denial of service or arbitrary code execution via a crafted squashfs filesystem, exploiting sbrk, request2size, or mishandling of ptrdifft on x8664. Mitigation Mitigation for this issue is either not available or the currently available...

CVE-2024-57256

A flaw was found in Das U-Boot. This vulnerability allows an attacker to cause a memory overwrite via a crafted ext4 filesystem with an inode size of 0xffffffff, which can lead to code execution or system crash. Mitigation Mitigation for this issue is either not available or the currently availab...

CVE-2024-57255

A flaw was found in Das U-Boot. This vulnerability allows an attacker to cause a memory overwrite via a crafted SquashFS filesystem with an inode size of 0xffffffff, which can lead to code execution or system crash. Mitigation Mitigation for this issue is either not available or the currently...