CVE-2023-0266

Katalog CVE

CVSS 7.0 · High KEV · sudah dieksploitasi EPSS 3,7%

Kerentanan Use After Free pada debian linux, linux kernel. Skor CVSS 3.1 7.0 (High) menurut NVD. Masuk katalog KEV CISA pada 30 Maret 2023, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e

Rincian

Terbit di NVD

30 Januari 2023

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.0 (High), sumber NVD
CVSS:3.1/AV:L/AC:H/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)

3,7% peluang dieksploitasi; lebih tinggi dari 89,4% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Linux Kernel Use-After-Free Vulnerability

Masuk KEV

30 Maret 2023

Tenggat CISA

20 April 2023 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply updates per vendor instructions.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lo... mailing list · patch · advisory vendor
• https://github.com/torvalds/linux/commit/56b88b50565cd8b946a2d00b0c83927b7ebb055e patch
• https://github.com/torvalds/linux/commit/becf9e5d553c2389d857a3c178ce80fdb34a02e1 patch
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0266 pemerintah AS
• https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html mailing list · advisory pihak ketiga