CVE-2024-45780
mediumpriority · track · 27EPSS 0.003 · 21 %ileDEEURUUSEPSS · scored 2026-10-23
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (129)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-0396Grub: Mehrere SchwachstellenDeutsch2025-02-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Grub ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu erzeugen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen preiszugeben oder nicht spezifizierte Auswirkungen zu verursachen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2024-45780cnnvd
- https://access.redhat.com/security/cve/cve-2024-45780cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2345856cnnvd
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2024-45780cnnvd
- https://www.gnu.org/software/grub/grub-download.htmlPatchcnnvd
- https://access.redhat.com/security/cve/CVE-2024-45780enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2345856enisa_euvd
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