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CVE-2024-45779

Grub2: fs/bfs: integer overflow leads to heap oob read in the bfs parser

Published: Mar 3, 2025Updated: Mar 25, 2025 Sources: CVE List NVD BDUCWE-190
NVD MITRE
6.0CVSSMEDIUM
EPSS Score
0.3%
Top 82.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow during the file reading, leading to a heap of bounds read. As a consequence, sensitive data may be leaked, or grub2 will crash.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:HI:NA: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:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-190

Affected Products

grub2gnuOSS Libraries
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
gnuoss-projectUSOSS Librariesaka g. nu
novell inc.commercialUSOperating Systems
and 24 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://access.redhat.com/security/cve/CVE-2024-45779
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2345854
bugzilla.redhat.com
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
lists.gnu.org
and 7 more references View all →

Timeline

Published
Mar 3, 2025
Last Updated
Mar 25, 2025

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