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u-boot

u-boot-nezha

An integer overflow vulnerability exists in the sqfs_resolve_symlink function of Das U-Boot before version 2025.01-rc1. This occurs when processing a crafted squashfs filesystem with an inode size of 0xffffffff, leading to a malloc of zero bytes and a subsequent memory overwrite. This flaw can cause U-Boot to crash or potentially allow arbitrary code execution. The issue affects multiple Ubuntu package versions of U-Boot and has been assigned CVE-2024-57255. A patch is available to address this vulnerability.

CVE-2024-57255 describes an integer overflow in the sqfs_resolve_symlink function within Das U-Boot versions prior to 2025.01-rc1. The vulnerability arises from improper handling of inode size calculations in squashfs filesystems, specifically when the inode size is set to 0xffffffff. This triggers a zero-byte malloc call, which leads to memory overwrite conditions. Exploitation of this flaw can cause denial of service via crashes or enable arbitrary code execution. The vulnerability has a CVSS 3.1 score of 7.1, indicating a medium severity level, with network attack vector requiring high attack complexity and no privileges or user interaction needed. Multiple Ubuntu U-Boot package versions are affected, and an official patch is available as detailed in the Ubuntu security notice USN-8056-1.

Detailed information about An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode s

An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of… (CVE-2024-57255) - Live Threat Intelligence - Threat Radar | OffSeq.com

An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of… (CVE-2024-57255)

An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.

CVE-2024-57255 is an integer overflow vulnerability classified under CWE-190 found in the denx U-Boot bootloader, a widely used open-source bootloader for embedded devices. The vulnerability exists in the sqfs_resolve_symlink function, which handles symbolic links within squashfs filesystems. Specifically, when processing a crafted squashfs image containing an inode size field set to the maximum 32-bit unsigned integer value (0xffffffff), the code miscalculates the required memory allocation size, resulting in a malloc call with zero bytes. This leads to a memory overwrite due to subsequent operations assuming a valid allocation. The consequence is a corruption of memory that can be exploited to compromise system confidentiality, integrity, and availability during the boot process. The vulnerability requires local access to the device's boot environment and has a high attack complexity, as crafting a malicious squashfs image and triggering the vulnerable code path is non-trivial. There are no known public exploits or active exploitation campaigns reported at this time. The vulnerability affects all U-Boot versions prior to 2025.01-rc1, which includes many embedded systems and IoT devices that rely on U-Boot for initial bootstrapping. Given U-Boot's prevalence in embedded Linux environments, this vulnerability poses a significant risk to devices that process untrusted squashfs filesystems during boot. The vulnerability has a CVSS v3.1 score of 7.1, reflecting its high severity due to the potential for complete system compromise without user interaction or privileges but requiring physical or local access.

Detailed information about CVE-2024-57255: CWE-190 Integer Overflow or Wraparound in denx U-Boot affecting denx U-Boot. Get real-time updates, technical details

CVE-2024-57255: CWE-190 Integer Overflow or Wraparound in denx U-Boot - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-57255: CWE-190 Integer Overflow or Wraparound in denx U-Boot


An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of… (CVE-2024-57255)CVE-2024-57255 0 An integer overflow vulnerability exists in the sqfs_resolve_symlink function of Das U-Boot before version 2025.01-rc1. This occurs when processing a crafted squashfs filesystem with an inode size of 0xffffffff, leading to a malloc of zero bytes and a subsequent memory overwrite. This flaw can cause U-Boot to crash or potentially allow arbitrary code execution. The issue affects multiple Ubuntu package versions of U-Boot and has been assigned CVE-2024-57255. A patch is available to address this vulnerability. MediumVulnerability#gcve #osv #ubuntu-cve-2024-57255 Join the discussion	GCVE Database	02/18/2025, 23:15:00 UTC Added: 08/26/2026, 15:02:06 UTC
CVE-2024-57255: CWE-190 Integer Overflow or Wraparound in denx U-BootCVE-2024-57255 0 An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite. HighVulnerabilityGermanyFranceUnited Kingdom+3#cve #cve-2024-57255 #cwe-190 Join the discussion	CVE Database V5	02/18/2025, 00:00:00 UTC Added: 11/03/2025, 19:53:57 UTC

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