CVE-2026-23456

Katalog CVE

CVSS 8.2 · High EPSS 0,52%

Kerentanan Out-of-bounds Read pada linux kernel. Skor CVSS 3.1 8.2 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case In decode_int(), the CONS case calls get_bits(bs, 2) to read a length value, then calls get_uint(bs, len) without checking that len bytes remain in the buffer. The existing boundary check only validates the 2 bits for get_bits(), not the subsequent 1-4 bytes that get_uint() reads. This allows a malformed H.323/RAS packet to cause a 1-4 byte slab-out-of-bounds read. Add a boundary check for len bytes after get_bits() and before get_uint().

Rincian

Terbit di NVD

3 April 2026

Terakhir diubah

24 Juli 2026

Status NVD

Modified

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read

EPSS (30 hari)

0,52% peluang dieksploitasi; lebih tinggi dari 42,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/1e3a3593162c96e8a8de48b1e14f60c3b57fca8a patch
• https://git.kernel.org/stable/c/41b417ff73a24b2c68134992cc44c88db27f482d patch
• https://git.kernel.org/stable/c/52235bf88159a1ef16434ab49e47e99c8a09ab20 patch
• https://git.kernel.org/stable/c/6bce72daeccca9aa1746e92d6c3d4784e71f2ebb patch
• https://git.kernel.org/stable/c/774a434f8c9c8602a976b2536f65d0172a07f4d2 patch
• https://git.kernel.org/stable/c/a2cd54b9348e485d338b3c132338a4410c99afaf patch
• https://git.kernel.org/stable/c/c95dc674ebf01ecfb40388b6facfc89b81fed3b7 patch
• https://git.kernel.org/stable/c/fb6c3596823ec5dd09c2123340330d7448f51a59 patch
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html
• https://cert-portal.siemens.com/productcert/html/ssa-082556.html