GNU grub2 BFS Parser integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in GNU grub2. Impacted is an unknown function of the component BFS Parser. Performing a manipulation results in integer overflow. This vulnerability is cataloged as CVE-2024-45779. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability was found in GNU grub2 (version now known). It has been classified as problematic. This affects some unknown processing of the component BFS Parser. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2024-45779 since 09/08/2024. The exploitability is told to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 216508 (SUSE SLES15 Security Update : grub2 (SUSE-SU-2025:0588-1)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (216508), EUVD (EUVD-2025-5594) and CERT Bund (WID-SEC-2025-0396). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • NetApp ActiveIQ Unified Manager
  • Dell NetWorker
  • Dell Avamar
  • Open Source Grub
  • Red Hat OpenShift
  • IBM QRadar SIEM

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.0
NVD Vector: 🔍

CNA Base Score: 6.0
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 216508
Nessus Name: SUSE SLES15 Security Update : grub2 (SUSE-SU-2025:0588-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/08/2024 🔍
02/18/2025 +163 days 🔍
02/18/2025 +0 days 🔍
09/18/2025 +212 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2024-45779 (🔍)
GCVE (CVE): GCVE-0-2024-45779
GCVE (VulDB): GCVE-100-296169
EUVD: 🔍
CERT Bund: WID-SEC-2025-0396 - Grub: Mehrere Schwachstellen

Entryinfo

Created: 02/18/2025 20:51
Updated: 09/18/2025 23:24
Changes: 02/18/2025 20:51 (50), 02/20/2025 11:30 (2), 03/06/2025 09:10 (13), 03/21/2025 19:12 (11), 03/25/2025 06:20 (7), 07/05/2025 11:34 (1), 09/18/2025 23:24 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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