CVE-2020-14372

Katalog CVE

CVSS 7.5 · High EPSS 1,7%

Kerentanan Incomplete List of Disallowed Inputs pada gnu grub2, redhat enterprise linux +7 lainnya. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat from this vulnerability is to data confidentiality and integrity, as well as system availability.

Rincian

Terbit di NVD

3 Maret 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-184: Incomplete List of Disallowed Inputs

EPSS (30 hari)

1,7% peluang dieksploitasi; lebih tinggi dari 77,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/vulnerabilities/RHSB-2021-003 patch · advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=1873150 issue tracking · advisory pihak ketiga
• https://security.gentoo.org/glsa/202104-05 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20210416-0004/ advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6M...