CVE-2023-54250

Katalog CVE

CVSS 8.2 · High EPSS 0,48%

Skor CVSS 3.1 8.2 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decode_preauth_ctxt() Confirm that the accessed pneg_ctxt->HashAlgorithms address sits within the SMB request boundary; deassemble_neg_contexts() only checks that the eight byte smb2_neg_context header + (client controlled) DataLength are within the packet boundary, which is insufficient. Checking for sizeof(struct smb2_preauth_neg_context) is overkill given that the type currently assumes SMB311_SALT_SIZE bytes of trailing Salt.

Rincian

Terbit di NVD

30 Desember 2025

Terakhir diubah

4 Agustus 2026

Status NVD

Deferred

CVSS 3.1

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

EPSS (30 hari)

0,48% peluang dieksploitasi; lebih tinggi dari 39,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/39f5b4b313b445c980a2a295bed28228c29228ed
• https://git.kernel.org/stable/c/a2f6ded41bec1d3be643c80a5eb97f1680309001
• https://git.kernel.org/stable/c/e7067a446264a7514fa1cfaa4052cdb6803bc6a2
• https://git.kernel.org/stable/c/f02edb9debbd36f44efa7567031485892c7df60d