CVE-2021-3609

Severity CVSS v4.0:

Pending analysis

Type:

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Publication date:

03/03/2022

Last modified:

11/08/2023

Description

.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.

Impact

Vector 3.x

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

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.00

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.90 MEDIUM
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

6.90

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.25 (including)	4.4.276 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.9.276 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.240 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.198 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.132 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5.0 (including)	5.10.50 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.12.17 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.13 (including)	5.13.2 (excluding)
cpe:2.3:a:redhat:3scale_api_management:2.0:::::::*
cpe:2.3:a:redhat:build_of_quarkus:1.0:::::::*
cpe:2.3:a:redhat:codeready_linux_builder_eus:8.1:::::::*
cpe:2.3:a:redhat:codeready_linux_builder_eus:8.2:::::::*
cpe:2.3:a:redhat:codeready_linux_builder_eus:8.4:::::::*
cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.1:::::::*
cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.2:::::::*

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

CVE-2021-3609

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools