CVE-2023-3776

Katalog CVE

CVSS 7.8 · High EPSS 0,51%

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_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_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 0323bce598eea038714f941ce2b22541c46d488f.

Rincian

Terbit di NVD

21 Juli 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

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)

0,51% peluang dieksploitasi; lebih tinggi dari 41,7% 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=0323bce598eea038714f941ce2b22541c... mailing list · patch · advisory vendor
• https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f patch · 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 · vdb entry
• https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html mailing list · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20240202-0003/ advisory pihak ketiga
• https://www.debian.org/security/2023/dsa-5480 advisory pihak ketiga
• https://www.debian.org/security/2023/dsa-5492 advisory pihak ketiga