CVE-2021-3697

Katalog CVE

CVSS 7.0 · High EPSS 0,46%

Kerentanan Out-of-bounds Write pada gnu grub2, redhat developer tools +10 lainnya. Skor CVSS 3.1 7.0 (High) menurut NVD.

Deskripsi (NVD)

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

Rincian

Terbit di NVD

6 Juli 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.0 (High), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:L/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)

0,46% peluang dieksploitasi; lebih tinggi dari 37,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=1991687 issue tracking · advisory pihak ketiga
• https://security.gentoo.org/glsa/202209-12 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20220930-0001/ advisory pihak ketiga