CVE-2023-3609

Katalog CVE

CVSS 7.8 · High EPSS 0,45%

Kerentanan Use After Free pada linux kernel, debian linux. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.

Rincian

Terbit di NVD

21 Juli 2023

Terakhir diubah

11 September 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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,45% peluang dieksploitasi; lebih tinggi dari 37,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=04c55383fa5689357bcdd2c8036725a55... mailing list · patch · advisory vendor
• https://kernel.dance/04c55383fa5689357bcdd2c8036725a55ed632bc advisory vendor
• https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html advisory vendor
• http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html advisory pihak ketiga · vdb entry
• http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html mailing list · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20230818-0005/ advisory pihak ketiga
• https://www.debian.org/security/2023/dsa-5480 advisory pihak ketiga