Heap Out-of-Bounds Write Vulnerability in Grub2 by Red Hat
CVE-2024-45781

6.7MEDIUM

Key Information:

Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 7
Vendor
CVE Published:
18 February 2025

What is CVE-2024-45781?

A significant vulnerability exists in Grub2 where the software improperly validates the length of symbolic link names sourced from a UFS filesystem. This failure to validate input string lengths can lead to a heap out-of-bounds write. As a result, this flaw may cause data integrity issues and allow attackers to bypass secure boot mechanisms, posing serious security risks to affected systems.

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References

https://access.redhat.com/errata/RHSA-2025:16154
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:6990
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2024-45781
vdb-entryx_refsource_REDHAT

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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