CVE-2024-57256: Integer Overflow
An integer overflow in ext4fsreadsymlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/u-bootto a version that resolves this vulnerability.Fixed in 2023.01+dfsg-2+deb12u2 - Upgrade
Upgrade
debian/u-bootto a version that resolves this vulnerability.Fixed in 2025.01-1 - Upgrade
Upgrade
debian/u-bootto a version that resolves this vulnerability.Fixed in 2023.01+dfsg-2+deb12u3Fixed in 2025.01-3+deb13u1Fixed in 2025.01-3.2
Event History
Frequently Asked Questions
What is the severity of CVE-2024-57256?
CVE-2024-57256 has a high severity due to the potential for memory overwrite and exploitation through crafted ext4 filesystems.
How do I fix CVE-2024-57256?
To fix CVE-2024-57256, upgrade to Das U-Boot version 2025.01-rc1 or later.
What types of systems are affected by CVE-2024-57256?
CVE-2024-57256 affects systems running vulnerable versions of Das U-Boot that use ext4 filesystems.
Can CVE-2024-57256 be exploited remotely?
Yes, CVE-2024-57256 can potentially be exploited remotely if an attacker can manipulate the ext4 filesystem.
What component of Das U-Boot is vulnerable in CVE-2024-57256?
CVE-2024-57256 affects the ext4fs_read_symlink component of Das U-Boot.