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CVE-2024-45781

Grub2: fs/ufs: oob write in the heap

Published: Feb 18, 2025Updated: Sep 18, 2025 Sources: CVE List NVD BDUCWE-787
NVD MITRE
6.7CVSSMEDIUM
EPSS Score
0.2%
Top 85.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

Suse Linux Enterprise DesktopNovell Inc.
On-premOS
Operating Systems / linux-distro
Suse Linux Enterprise ServerNovell Inc.
On-premOS
Operating Systems / linux-distro
SUSE Linux Enterprise Module for BasesystemNovell Inc.
On-premOS
Operating Systems / linux-distro
SUSE CaaS PlatformNovell Inc.
On-prem
Operating Systems / linux-distro
SUSE Linux Enterprise Point of SaleNovell Inc.
On-premOS
Operating Systems / linux-distro
novell inc.commercialUSOperating Systems
and 26 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.suse.com/security/cve/CVE-2024-45781.html
suse.com
https://security-tracker.debian.org/tracker/CVE-2024-45781
security-tracker.debian.org
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
lists.gnu.org
and 10 more references View all →

Timeline

Published
Feb 18, 2025
Last Updated
Sep 18, 2025

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