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CVE-2021-3609 Detail

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 7.0 HIGH

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 6.9 MEDIUM

Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1971651	Issue Tracking Third Party Advisory
https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md	Exploit Technical Description Third Party Advisory
https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463	Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20220419-0004/	Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/06/19/1	Mailing List Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-362	Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')	NIST Red Hat, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

8 change records found show changes

CVE Modified by Red Hat, Inc. 2/12/2023 6:41:21 PM

Action	Type	Old Value	New Value
Removed	CVSS V3.1	Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		Red Hat, Inc. CWE-362
Changed	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.	.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.
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3044 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3057 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3088 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3235 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3363 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3375 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3380 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3442 [No Types Assigned]
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:3444 [No Types Assigned]
Removed	Reference	https://access.redhat.com/security/cve/CVE-2021-3609 [No Types Assigned]

CVE Modified by Red Hat, Inc. 2/02/2023 4:21:12 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Removed	CWE	Red Hat, Inc. CWE-362
Changed	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.	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.
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3044 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3057 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3088 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3235 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3363 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3375 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3380 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3442 [No Types Assigned]
Added	Reference		https://access.redhat.com/errata/RHSA-2021:3444 [No Types Assigned]
Added	Reference		https://access.redhat.com/security/cve/CVE-2021-3609 [No Types Assigned]

Modified Analysis by NIST 10/06/2022 12:21:03 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h300e_firmware:-::::::: OR cpe:2.3:h:netapp:h300e:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h300s_firmware:-::::::: OR cpe:2.3:h:netapp:h300s:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h410c_firmware:-::::::: OR cpe:2.3:h:netapp:h410c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h410s_firmware:-::::::: OR cpe:2.3:h:netapp:h410s:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h500e_firmware:-::::::: OR cpe:2.3:h:netapp:h500e:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h500s_firmware:-::::::: OR cpe:2.3:h:netapp:h500s:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h610c_firmware:-::::::: OR cpe:2.3:h:netapp:h610c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h610s_firmware:-::::::: OR cpe:2.3:h:netapp:h610s:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h615c_firmware:-::::::: OR cpe:2.3:h:netapp:h615c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h700e_firmware:-::::::: OR cpe:2.3:h:netapp:h700e:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:netapp:h700s_firmware:-::::::: OR cpe:2.3:h:netapp:h700s:-:::::::*
Changed	CPE Configuration	Record truncated, showing 500 of 3022 characters. View Entire Change Record OR 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:openshift_container_platform:4.6::::::: cpe:2.3:a:redhat:openshift_container_platform:4.7::::::: cpe:2.3:a:redhat:openshift_container_platform:4.8::::::: cpe:2.3:a:redhat:virtualization:4.0::::::: cpe:2.3:a:redhat:virtualization_host:4.0::::::: *cpe:2.3:o:redhat:codeready_linux_builder_eu	Record truncated, showing 500 of 3022 characters. View Entire Change Record OR 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
Changed	Reference Type	https://security.netapp.com/advisory/ntap-20220419-0004/ No Types Assigned	https://security.netapp.com/advisory/ntap-20220419-0004/ Third Party Advisory

Initial Analysis by NIST 3/10/2022 10:21:14 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR cpe:2.3:a:linux:linux_kernel::::::::* versions from (including) 2.6.25 up to (excluding) 5.13 cpe:2.3:a:linux:linux_kernel:5.13:rc1::::::* cpe:2.3:a:linux:linux_kernel:5.13:rc2::::::* cpe:2.3:a:linux:linux_kernel:5.13:rc3::::::* cpe:2.3:a:linux:linux_kernel:5.13:rc4::::::* cpe:2.3:a:linux:linux_kernel:5.13:rc5::::::* cpe:2.3:a:linux:linux_kernel:5.13:rc6::::::*
Added	CPE Configuration		Record truncated, showing 500 of 3022 characters. View Entire Change Record OR 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:openshift_container_platform:4.6::::::: cpe:2.3:a:redhat:openshift_container_platform:4.7::::::: cpe:2.3:a:redhat:openshift_container_platform:4.8::::::: cpe:2.3:a:redhat:virtualization:4.0::::::: cpe:2.3:a:redhat:virtualization_host:4.0::::::: *cpe:2.3:o:redhat:codeready_linux_builder_eu
Added	CVSS V2		NIST (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Added	CVSS V3.1		NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-362
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=1971651 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=1971651 Issue Tracking, Third Party Advisory
Changed	Reference Type	https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md No Types Assigned	https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md Exploit, Technical Description, Third Party Advisory
Changed	Reference Type	https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463 No Types Assigned	https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463 Patch, Third Party Advisory
Changed	Reference Type	https://www.openwall.com/lists/oss-security/2021/06/19/1 No Types Assigned	https://www.openwall.com/lists/oss-security/2021/06/19/1 Mailing List, Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-3609
NVD Published Date:
03/03/2022
NVD Last Modified:
08/11/2023
Source:
Red Hat, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-3609 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by Red Hat, Inc. 5/14/2024 5:24:52 AM

Reanalysis by NIST 8/11/2023 3:44:29 PM

Modified Analysis by NIST 5/16/2023 6:39:09 PM

CVE Modified by Red Hat, Inc. 2/12/2023 6:41:21 PM

CVE Modified by Red Hat, Inc. 2/02/2023 4:21:12 PM

Modified Analysis by NIST 10/06/2022 12:21:03 PM

CVE Modified by Red Hat, Inc. 4/19/2022 3:15:32 PM

Initial Analysis by NIST 3/10/2022 10:21:14 AM

Quick Info