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CVE-2024-45780

Grub2: fs/tar: integer overflow causes heap oob write

Published: Mar 3, 2025Updated: Mar 7, 2025 Sources: CVE List NVD BDUCWE-787
NVD MITRE
6.7CVSSMEDIUM
EPSS Score
0.3%
Top 82.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It's possible to cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write. This flaw eventually allows 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

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

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://access.redhat.com/security/cve/CVE-2024-45780
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2345856
bugzilla.redhat.com
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
lists.gnu.org
and 9 more references View all →

Timeline

Published
Mar 3, 2025
Last Updated
Mar 7, 2025

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