CVE-2021-29155

linux kernel, fedoraproject fedora, debian linux

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2021-29155

Katalog CVE

CVSS 5.5 · Medium EPSS 1,1%

Kerentanan Out-of-bounds Read pada linux kernel, fedoraproject fedora +1 lainnya. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.

Rincian

Terbit di NVD
20 April 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-125: Out-of-bounds Read
EPSS (30 hari)
1,1% peluang dieksploitasi; lebih tinggi dari 63,9% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
linux linux kernel Semua versi sebelum 5.11.16
fedoraproject fedora Versi 32
fedoraproject fedora Versi 33
fedoraproject fedora Versi 34
debian debian linux Versi 9.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.