Integer Overflow Vulnerability in Barebox Affecting ext4 Filesystem

CVE-2024-57262

Summary

In Barebox versions before 2025.01.0, an integer overflow occurs within the ext4fs_read_symlink function due to improper handling of inode sizes, specifically when the inode size is set to 0xffffffff. This vulnerability can be exploited through a specially crafted ext4 filesystem, potentially leading to a malloc of zero bytes and subsequent memory overwrite. The exploit correlates with similar issues documented in CVE-2024-57256, emphasizing the need for immediate attention to secure the affected versions.

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