Integer Overflow or Wraparound Affecting u-boot package, versions [,2025.01-rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published30 Jan 2025
- disclosed30 Jan 2025
- creditRichard Weinberger
Introduced: 30 Jan 2025
CVE-2024-57256 (opens in a new tab)How to fix?
Upgrade u-boot to version 2025.01-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the ext4fs_read_symlink() function. An attacker can carefully craft a ext4 filesystem that can exhibit an inode size of 0xffffffff, as a consequence zalloc() will do a zero allocation. Later in the function the inode size is again used for copying data, allowing an attacker to overwrite memory.