CVE-2024-45781: Grub2: fs/ufs: oob write in the heap
A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2024-45781?
CVE-2024-45781 has a high severity rating due to the potential for heap out-of-bounds write vulnerabilities affecting data integrity.
How do I fix CVE-2024-45781?
To fix CVE-2024-45781, ensure that you update your GRUB2 software to the latest patched version provided by the vendor.
What systems are affected by CVE-2024-45781?
CVE-2024-45781 affects systems utilizing the GNU GRUB2 bootloader, particularly those using UFS filesystem.
What are the potential impacts of exploiting CVE-2024-45781?
Exploiting CVE-2024-45781 may lead to data integrity issues and could allow an attacker to execute arbitrary code.
Is there a workaround for CVE-2024-45781?
Until a patch is applied for CVE-2024-45781, consider restricting access to the affected systems and monitoring for unusual activity.