CVE-2025-1125

When reading data from a hfs filesystem, grub's hfs filesystem module uses user-controlled parameters from the filesystem metadata to calculate the internal buffers size, however it misses to properly check for integer overflows. A maliciouly crafted filesystem may lead some of those buffer size calculation to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result the hfsplus_open_compressed_real() function will write past of the internal buffer length. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution by-passing secure boot protections.

CVSS v3 6.7 MEDIUM

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2025-1125	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2346138	Issue Tracking Third Party Advisory
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html	Mailing List Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-03-03 15:15

Updated : 2025-08-12 14:15

NVD link : CVE-2025-1125

Mitre link : CVE-2025-1125

CVE.ORG link : CVE-2025-1125

JSON object : View

Products Affected

gnu

grub2

CWE

CWE-787

Out-of-bounds Write

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