CVE-2024-45782: Out-of-bounds Write
A flaw was found in the HFS filesystem. When reading an HFS volume's name at grub_fs_mount(), the HFS filesystem driver performs a strcpy() using the user-provided volume name as input without properly validating the volume name's length. This issue may read to a heap-based out-of-bounds writer, impacting grub's sensitive data integrity and eventually leading to a secure boot protection bypass.
AI Analysis
Technical Summary
This vulnerability arises from improper input validation in the HFS filesystem driver within GRUB. Specifically, when mounting an HFS volume, the volume name is copied using strcpy() without length checks, allowing an attacker to cause a heap-based out-of-bounds write. The flaw can impact the integrity of sensitive data managed by GRUB and may allow bypassing secure boot protections. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability with low attack complexity but requiring local privileges.
Potential Impact
Successful exploitation can lead to corruption of GRUB's sensitive data and bypass of secure boot protections, which undermines system integrity and trust in the boot process. The vulnerability affects confidentiality, integrity, and availability of the affected system components.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2024-45782 for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, avoid mounting untrusted HFS volumes or restrict local user access to mitigate exploitation risk.
CVE-2024-45782: Out-of-bounds Write
Description
A flaw was found in the HFS filesystem. When reading an HFS volume's name at grub_fs_mount(), the HFS filesystem driver performs a strcpy() using the user-provided volume name as input without properly validating the volume name's length. This issue may read to a heap-based out-of-bounds writer, impacting grub's sensitive data integrity and eventually leading to a secure boot protection bypass.
CVSS v3.1
Score 7.8high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper input validation in the HFS filesystem driver within GRUB. Specifically, when mounting an HFS volume, the volume name is copied using strcpy() without length checks, allowing an attacker to cause a heap-based out-of-bounds write. The flaw can impact the integrity of sensitive data managed by GRUB and may allow bypassing secure boot protections. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability with low attack complexity but requiring local privileges.
Potential Impact
Successful exploitation can lead to corruption of GRUB's sensitive data and bypass of secure boot protections, which undermines system integrity and trust in the boot process. The vulnerability affects confidentiality, integrity, and availability of the affected system components.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2024-45782 for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, avoid mounting untrusted HFS volumes or restrict local user access to mitigate exploitation risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2024-09-08T01:57:12.948Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2024-45782","vendor":"Red Hat"}]
Threat ID: 6916966eb9f11918f9c6af21
Added to database: 11/14/2025, 02:39:42 UTC
Last enriched: 07/02/2026, 22:17:25 UTC
Last updated: 09/10/2026, 19:36:48 UTC
Views: 316
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