Integer Overflow Vulnerability in Das U-Boot
CVE-2024-57258
Key Information:
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What is CVE-2024-57258?
CVE-2024-57258 is an integer overflow vulnerability affecting Das U-Boot, an open-source bootloader widely used in embedded devices. This vulnerability arises from improper memory allocation when processing a crafted squashfs filesystem. If exploited, it could lead to destabilization of the system or potential arbitrary code execution, posing serious challenges for organizations that rely on secure and stable boot processes in their embedded systems.
Technical Details
The vulnerability originates from the mishandling of ptrdiff_t type operations in memory allocation on x86_64 architectures. Specifically, it occurs in the function handling squashfs filesystems through sbrk and request2size calls. These technical flaws can allow attackers to create conditions resulting in integer overflows, which may corrupt memory and lead to unintended behavior.
Potential impact of CVE-2024-57258
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System Instability: Exploiting this vulnerability could compromise the integrity of the boot process, potentially leading to system crashes or misconfigurations that affect functionality and performance.
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Arbitrary Code Execution: Attackers could leverage this vulnerability to execute arbitrary code with elevated privileges, granting them control over the affected embedded devices and creating significant security risks.
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Data Integrity Risks: With the possibility of arbitrary code execution, there is the risk of unauthorized access to sensitive data stored on the device, leading to data breaches or information theft.
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Affected Version(s)
U-Boot 0 < 2025.01-rc1
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