CVE-2021-4028: linux kernel +1 lainnya

csirt@kutim:~/threat-intel/cve/CVE-2021-4028

CVSS 7.8 · High EPSS 0,31%

Kerentanan Use After Free pada linux kernel, suse linux enterprise. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.

Rincian

Terbit di NVD: 24 Agustus 2022
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-416: Use After Free
EPSS (30 hari): 0,31% peluang dieksploitasi; lebih tinggi dari 22,5% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
linux	linux kernel	Versi 5.10 hingga sebelum 5.10.71
linux	linux kernel	Versi 5.11 hingga sebelum 5.14.10
suse	linux enterprise	Versi 15.0 sp3
suse	linux enterprise	Versi 15.0 sp4

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 mailing list · patch · advisory vendor
https://lkml.org/lkml/2021/10/4/697 mailing list · patch · advisory vendor
https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 issue tracking · patch · advisory pihak ketiga
https://access.redhat.com/security/cve/CVE-2021-4028 advisory pihak ketiga
https://bugzilla.redhat.com/show_bug.cgi?id=2027201 issue tracking · advisory pihak ketiga
https://security.netapp.com/advisory/ntap-20221228-0002/ 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.