Vulnerability Monitor

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CVE-2021-3609

.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.

Published

2022-03-03T19:15:08.173

Last Modified

2024-11-21T06:21:58.233

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Primary
CWE-362
Type: Secondary
CWE-362

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 4.4.276	Yes
Operating System	linux	linux_kernel	< 4.9.276	Yes
Operating System	linux	linux_kernel	< 4.14.240	Yes
Operating System	linux	linux_kernel	< 4.19.198	Yes
Operating System	linux	linux_kernel	< 5.4.132	Yes
Operating System	linux	linux_kernel	< 5.10.50	Yes
Operating System	linux	linux_kernel	< 5.12.17	Yes
Operating System	linux	linux_kernel	< 5.13.2	Yes
Application	redhat	3scale_api_management	2.0	Yes
Application	redhat	build_of_quarkus	1.0	Yes
Application	redhat	codeready_linux_builder_eus	8.1	Yes
Application	redhat	codeready_linux_builder_eus	8.2	Yes
Application	redhat	codeready_linux_builder_eus	8.4	Yes
Application	redhat	codeready_linux_builder_for_power_little_endian_eus	8.1	Yes
Application	redhat	codeready_linux_builder_for_power_little_endian_eus	8.2	Yes
Application	redhat	codeready_linux_builder_for_power_little_endian_eus	8.4	Yes
Application	redhat	openshift_container_platform	4.6	Yes
Application	redhat	openshift_container_platform	4.7	Yes
Application	redhat	openshift_container_platform	4.8	Yes
Application	redhat	virtualization	4.0	Yes
Application	redhat	virtualization_host	4.0	Yes
Operating System	redhat	enterprise_linux_aus	8.2	Yes
Operating System	redhat	enterprise_linux_eus	8.1	Yes
Operating System	redhat	enterprise_linux_eus	8.2	Yes
Operating System	redhat	enterprise_linux_eus	8.4	Yes
Operating System	redhat	enterprise_linux_for_ibm_z_systems_eus	8.4	Yes
Operating System	redhat	enterprise_linux_for_ibm_z_systems_eus_s390x	8.1	Yes
Operating System	redhat	enterprise_linux_for_power_little_endian_eus	8.1	Yes
Operating System	redhat	enterprise_linux_for_power_little_endian_eus	8.2	Yes
Operating System	redhat	enterprise_linux_for_power_little_endian_eus	8.4	Yes
Operating System	redhat	enterprise_linux_for_real_time	8.0	Yes
Operating System	redhat	enterprise_linux_for_real_time_for_nfv	8.0	Yes
Operating System	redhat	enterprise_linux_for_real_time_for_nfv_tus	8.0	Yes
Operating System	redhat	enterprise_linux_for_real_time_for_nfv_tus	8.2	Yes
Operating System	redhat	enterprise_linux_for_real_time_tus	8.0	Yes
Operating System	redhat	enterprise_linux_for_real_time_tus	8.2	Yes
Operating System	redhat	enterprise_linux_server_aus	8.2	Yes
Operating System	redhat	enterprise_linux_server_aus	8.4	Yes
Operating System	redhat	enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions	8.1	Yes
Operating System	redhat	enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions	8.2	Yes
Operating System	redhat	enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions	8.4	Yes
Operating System	redhat	enterprise_linux_server_tus	8.2	Yes
Operating System	redhat	enterprise_linux_server_tus	8.4	Yes
Operating System	redhat	enterprise_linux_server_update_services_for_sap_solutions	8.1	Yes
Operating System	redhat	enterprise_linux_server_update_services_for_sap_solutions	8.2	Yes
Operating System	redhat	enterprise_linux_server_update_services_for_sap_solutions	8.4	Yes
Operating System	netapp	h300s_firmware	-	Yes
Hardware	netapp	h300s	-	No
Operating System	netapp	h500s_firmware	-	Yes
Hardware	netapp	h500s	-	No
Operating System	netapp	h700s_firmware	-	Yes
Hardware	netapp	h700s	-	No
Operating System	netapp	h300e_firmware	-	Yes
Hardware	netapp	h300e	-	No
Operating System	netapp	h500e_firmware	-	Yes
Hardware	netapp	h500e	-	No
Operating System	netapp	h700e_firmware	-	Yes
Hardware	netapp	h700e	-	No
Operating System	netapp	h410s_firmware	-	Yes
Hardware	netapp	h410s	-	No
Operating System	netapp	h410c_firmware	-	Yes
Hardware	netapp	h410c	-	No
Operating System	netapp	h610c_firmware	-	Yes
Hardware	netapp	h610c	-	No
Operating System	netapp	h610s_firmware	-	Yes
Hardware	netapp	h610s	-	No
Operating System	netapp	h615c_firmware	-	Yes
Hardware	netapp	h615c	-	No

References

https://bugzilla.redhat.com/show_bug.cgi?id=1971651 Issue Tracking, Third Party Advisory ([email protected])
https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md Exploit, Technical Description, Third Party Advisory ([email protected])
https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463 Patch, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20220419-0004/ Third Party Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2021/06/19/1 Mailing List, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1971651 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md Exploit, Technical Description, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20220419-0004/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2021/06/19/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)