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.

• CWE-787

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

Published

Mar 3, 2025

Last Modified

Jun 30, 2026

Status

Modified

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