CVE-2021-20225

Katalog CVE

CVSS 6.7 · Medium EPSS 1,0%

Kerentanan Out-of-bounds Write pada gnu grub2, redhat enterprise linux +6 lainnya. Skor CVSS 3.1 6.7 (Medium) menurut NVD.

Deskripsi (NVD)

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. 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

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

1,0% peluang dieksploitasi; lebih tinggi dari 62,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=1924696 issue tracking · advisory pihak ketiga
• https://security.gentoo.org/glsa/202104-05 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20220325-0001/ advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6M...