CVE-2025-40173

Katalog CVE

CVSS 7.8 · High EPSS 0,15%

Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: net/ip6_tunnel: Prevent perpetual tunnel growth Similarly to ipv4 tunnel, ipv6 version updates dev->needed_headroom, too. While ipv4 tunnel headroom adjustment growth was limited in commit 5ae1e9922bbd ("net: ip_tunnel: prevent perpetual headroom growth"), ipv6 tunnel yet increases the headroom without any ceiling. Reflect ipv4 tunnel headroom adjustment limit on ipv6 version. Credits to Francesco Ruggeri, who was originally debugging this issue and wrote local Arista-specific patch and a reproducer.

Rincian

Terbit di NVD

12 November 2025

Terakhir diubah

30 Juli 2026

Status NVD

Deferred

CVSS 3.1

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

EPSS (30 hari)

0,15% peluang dieksploitasi; lebih tinggi dari 3,9% 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/10fe967efe73c610e526ff7460581610633dee9c
• https://git.kernel.org/stable/c/11f6066af3bfb8149aa16c42c0b0c5ea5b199a94
• https://git.kernel.org/stable/c/21f4d45eba0b2dcae5dbc9e5e0ad08735c993f16
• https://git.kernel.org/stable/c/402b6985e872b4cf394bbbf33b503947a326a6cb
• https://git.kernel.org/stable/c/48294a67863c9cfa367abb66bbf0ef6548ae124f
• https://git.kernel.org/stable/c/566f8d5c8a443f2dd69c5460fdec43ed1c870c65
• https://git.kernel.org/stable/c/b6eb25d870f1a8ae571fd3da2244b71df547824b
• https://git.kernel.org/stable/c/eeb4345488672584db4f8c20a1ae13a212ce31c4