CVE-2021-21781: linux kernel +3 lainnya

csirt@kutim:~/threat-intel/cve/CVE-2021-21781

CVSS 3.3 · Low EPSS 0,50%

Kerentanan Use of Uninitialized Resource pada linux kernel, oracle communications cloud native core binding support function +2 lainnya. Skor CVSS 3.1 3.3 (Low) menurut NVD.

Deskripsi (NVD)

An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11

Rincian

Terbit di NVD: 18 Agustus 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 3.3 (Low), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-908: Use of Uninitialized Resource
EPSS (30 hari): 0,50% peluang dieksploitasi; lebih tinggi dari 40,8% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
linux	linux kernel	Versi 5.4.54
linux	linux kernel	Versi 5.4.66
oracle	communications cloud native core binding support function	Versi 22.1.3
oracle	communications cloud native core network exposure function	Versi 22.1.1
oracle	communications cloud native core policy	Versi 22.2.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://www.oracle.com/security-alerts/cpujul2022.html patch · advisory pihak ketiga
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243 exploit · advisory pihak ketiga

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.