CVE-2021-47232

Katalog CVE

CVSS 9.8 · Critical EPSS 0,62%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix Use-after-Free, hold skb ref while in use This patch fixes a Use-after-Free found by the syzbot. The problem is that a skb is taken from the per-session skb queue, without incrementing the ref count. This leads to a Use-after-Free if the skb is taken concurrently from the session queue due to a CTS.

Rincian

Terbit di NVD

21 Mei 2024

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,62% peluang dieksploitasi; lebih tinggi dari 48,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/1071065eeb33d32b7d98c2ce7591881ae7381705 patch
• https://git.kernel.org/stable/c/2030043e616cab40f510299f09b636285e0a3678 patch
• https://git.kernel.org/stable/c/22cba878abf646cd3a02ee7c8c2cef7afe66a256 patch
• https://git.kernel.org/stable/c/509ab6bfdd0c76daebbad0f0af07da712116de22 patch