TI-2024-30746 Aliases CVE-2024-45779 GHSA-qg4m-5hg4-34vq

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

LOW 27CWE-190Published 2025-03-03 · Updated 2026-11-05

Key facts

Attack vector: Local
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00293 22nd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	grub2	up to 2.12	—	No fix listed	CNA
Red Hat	Red Hat Enterprise Linux 10	—	—	Not affected	CNA
Red Hat	Red Hat Enterprise Linux 7	—	—	Not affected	CNA
Red Hat	Red Hat Enterprise Linux 8	—	—	Not affected	CNA
Red Hat	Red Hat Enterprise Linux 9	—	—	Not affected	CNA
Red Hat	Red Hat OpenShift Container Platform 4	—	—	Not affected	CNA

grub2 Vendor— Affected up to 2.12 Fixed in — No fix listed CNA
Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — Not affected CNA
Red Hat OpenShift Container Platform 4 VendorRed Hat Affected — Fixed in — Not affected CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:gnu:grub2::::::::	up to 2.12	Vulnerable	GNU

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* Versions up to 2.12 Vulnerable ·GNU

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 5 products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat OpenShift Container Platform 4

Timeline

2026-10-02 Threatist record created from CVE-2024-45779
2026-10-03 Alias added: GHSA-qg4m-5hg4-34vq
2026-10-21 Affected versions changed · CNA

References

Advisory 1

https://access.redhat.com/security/cve/CVE-2024-45779

Other 2

TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8

See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences