CVE-2025-21666

Katalog CVE

CVSS 5.5 · Medium EPSS 0,22%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: vsock: prevent null-ptr-deref in vsock_*[has_data|has_space] Recent reports have shown how we sometimes call vsock_*_has_data() when a vsock socket has been de-assigned from a transport (see attached links), but we shouldn't. Previous commits should have solved the real problems, but we may have more in the future, so to avoid null-ptr-deref, we can return 0 (no space, no data available) but with a warning. This way the code should continue to run in a nearly consistent state and have a warning that allows us to debug future problems.

Rincian

Terbit di NVD

31 Januari 2025

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:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,22% peluang dieksploitasi; lebih tinggi dari 12,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/91751e248256efc111e52e15115840c35d85abaf patch
• https://git.kernel.org/stable/c/9e5fed46ccd2c34c5fa5a9c8825ce4823fdc853e patch
• https://git.kernel.org/stable/c/b52e50dd4fabd12944172bd486a4f4853b7f74dd patch
• https://git.kernel.org/stable/c/bc9c49341f9728c31fe248c5fbba32d2e81a092b patch
• https://git.kernel.org/stable/c/c23d1d4f8efefb72258e9cedce29de10d057f8ca patch
• https://git.kernel.org/stable/c/daeac89cdb03d30028186f5ff7dc26ec8fa843e7 patch
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
• https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
• https://cert-portal.siemens.com/productcert/html/ssa-265688.html