Vulnerability Details : CVE-2021-3609
Potential exploit
.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.
Vulnerability category: Gain privilege
Products affected by CVE-2021-3609
- cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.1:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_aus:8.2:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
- 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:3scale_api_management:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:build_of_quarkus:1.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:8.1:*:*:*:*:*:*:*
- Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 8.1cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*
- Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 8.2cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*
- Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 8.4cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:codeready_linux_builder_eus:8.2:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:codeready_linux_builder_eus:8.1:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:codeready_linux_builder_eus:8.4:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*
Threat overview for CVE-2021-3609
Top countries where our scanners detected CVE-2021-3609
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2021-3609 657,549
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-3609!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2021-3609
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 14 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3609
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST |
CWE ids for CVE-2021-3609
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2021-3609
-
https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463
can: bcm: delay release of struct bcm_op after synchronize_rcu() · torvalds/linux@d5f9023 · GitHubPatch;Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2021/06/19/1
oss-security - CVE-2021-3609: Race condition in net/can/bcm.c leads to local privilege escalationMailing List;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20220419-0004/
CVE-2021-3609 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1971651
1971651 – (CVE-2021-3609) CVE-2021-3609 kernel: race condition in net/can/bcm.c leads to local privilege escalationIssue Tracking;Third Party Advisory
-
https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md
kernel-exploitation/cve-2021-3609.md at main · nrb547/kernel-exploitation · GitHubExploit;Technical Description;Third Party Advisory
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