CVE-2023-0266

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

30/01/2023

Last modified:

14/03/2025

Description

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

Impact

Vector 3.x

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.90 HIGH
Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): High
Availability (A): High

Base Score 3.x

7.90

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.14 (including)	4.14.303 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.270 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.229 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.163 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.88 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.6 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-0266

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools