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6.7
MEDIUM CVSS 3.1
CVE-2024-45780
Grub2: fs/tar: integer overflow causes heap oob write
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.

INFO

Published Date :

March 3, 2025, 3:15 p.m.

Last Modified :

March 5, 2025, 9:15 p.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2024-45780 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gnu grub2
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
Solution
Update GRUB2 to a version that properly validates buffer allocations to prevent heap overflows.
  • Update GRUB2 to the latest secure version.
  • Apply any security patches for GRUB2.
  • Rebuild GRUB2 with updated code.
  • Verify secure boot configurations.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-45780.

URL Resource
https://access.redhat.com/security/cve/CVE-2024-45780
https://bugzilla.redhat.com/show_bug.cgi?id=2345856
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-45780 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-45780 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-45780 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2024-45780 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Mar. 07, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Added CPE Configuration OR *cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* versions from (including) 2.12
    Added Reference Type Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2024-45780 Types: Third Party Advisory
    Added Reference Type Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2345856 Types: Issue Tracking
    Added Reference Type Red Hat, Inc.: https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html Types: Mailing List
  • CVE Modified by [email protected]

    Mar. 05, 2025

    Action Type Old Value New Value
    Added Reference https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
  • New CVE Received by [email protected]

    Mar. 03, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-787
    Added Reference https://access.redhat.com/security/cve/CVE-2024-45780
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2345856
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.7
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact