CVE-2022-49698

Katalog CVE

CVSS 7.8 · High EPSS 0,30%

Kerentanan pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: netfilter: use get_random_u32 instead of prandom bh might occur while updating per-cpu rnd_state from user context, ie. local_out path. BUG: using smp_processor_id() in preemptible [00000000] code: nginx/2725 caller is nft_ng_random_eval+0x24/0x54 [nft_numgen] Call Trace: check_preemption_disabled+0xde/0xe0 nft_ng_random_eval+0x24/0x54 [nft_numgen] Use the random driver instead, this also avoids need for local prandom state. Moreover, prandom now uses the random driver since d4150779e60f ("random32: use real rng for non-deterministic randomness"). Based on earlier patch from Pablo Neira.

Rincian

Terbit di NVD

26 Februari 2025

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
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)

0,30% peluang dieksploitasi; lebih tinggi dari 20,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/15cc30ac2a8d7185f8ebf97dd1ddd90a7c79783b patch
• https://git.kernel.org/stable/c/6ce71f83f798be7e1ca68707fec449fbecb38852 patch
• https://git.kernel.org/stable/c/b1fd94e704571f98b21027340eecf821b2bdffba patch
• https://git.kernel.org/stable/c/d0906b0fffc9f19bc42708ca3e84e2089088386c patch