Integer Overflow or Wraparound Affecting u-boot package, versions [,2025.01-rc1)
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Test your applications- Snyk IDSNYK-UNMANAGED-UBOOT-8678808
- published30 Jan 2025
- disclosed30 Jan 2025
- creditRichard Weinberger
Introduced: 30 Jan 2025
NewCVE-2024-57256 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
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.