Integer Overflow Vulnerability in GRUB2 Affects Red Hat Products
CVE-2025-0678

7.8HIGH

Key Information:

Vendor

Gnu
Status
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
3 March 2025

What is CVE-2025-0678?

A flaw in GRUB2's squash4 filesystem module allows user-controlled parameters to affect buffer size calculations, risking integer overflows. An attacker can exploit this vulnerability by crafting a malicious filesystem, potentially leading to an out-of-bounds write during data reading. This exploitation could corrupt critical internal data and enable arbitrary code execution, thus bypassing secure boot protections.

References

https://access.redhat.com/security/cve/CVE-2025-0678
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2346118
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.