CVE-2026-23247

Katalog CVE

CVSS 5.5 · Medium EPSS 0,12%

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

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: tcp: secure_seq: add back ports to TS offset This reverts 28ee1b746f49 ("secure_seq: downgrade to per-host timestamp offsets") tcp_tw_recycle went away in 2017. Zhouyan Deng reported off-path TCP source port leakage via SYN cookie side-channel that can be fixed in multiple ways. One of them is to bring back TCP ports in TS offset randomization. As a bonus, we perform a single siphash() computation to provide both an ISN and a TS offset.

Rincian

Terbit di NVD

18 Maret 2026

Terakhir diubah

19 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

EPSS (30 hari)

0,12% peluang dieksploitasi; lebih tinggi dari 1,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/165573e41f2f66ef98940cf65f838b2cb575d9d1 patch
• https://git.kernel.org/stable/c/46e5b0d7cf55821527adea471ffe52a5afbd9caf patch
• https://git.kernel.org/stable/c/eae2f14ab2efccdb7480fae7d42c4b0116ef8805 patch
• https://git.kernel.org/stable/c/5da5662181ef8a251e3ba564903002c2e87de452