Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.25, < 4.4.276 |
| Redhat | 3Scale Api Management | 2.0 |
| Redhat | Build Of Quarkus | 1.0 |
| Redhat | Codeready Linux Builder Eus | 8.1 |
| Redhat | Codeready Linux Builder For Power Little Endian Eus | 8.1 |
| Redhat | Openshift Container Platform | 4.6 |
| Redhat | Virtualization | 4.0 |
| Redhat | Virtualization Host | 4.0 |
| Redhat | Enterprise Linux Aus | 8.2 |
| Redhat | Enterprise Linux Eus | 8.1 |
| Redhat | Enterprise Linux For Ibm Z Systems Eus | 8.4 |
| Redhat | Enterprise Linux For Ibm Z Systems Eus S390X | 8.1 |
| Redhat | Enterprise Linux For Power Little Endian Eus | 8.1 |
| Redhat | Enterprise Linux For Real Time | 8.0 |
| Redhat | Enterprise Linux For Real Time For Nfv | 8.0 |
| Redhat | Enterprise Linux For Real Time For Nfv Tus | 8.0 |
| Redhat | Enterprise Linux For Real Time Tus | 8.0 |
| Redhat | Enterprise Linux Server Aus | 8.2 |
| Redhat | Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions | 8.1 |
| Redhat | Enterprise Linux Server Tus | 8.2 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1971651Issue TrackingThird Party Advisory
- https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3ExploitTechnical DescriptionThird Party Advisory
- https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e46PatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220419-0004/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/06/19/1Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1971651Issue TrackingThird Party Advisory
- https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3ExploitTechnical DescriptionThird Party Advisory
- https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e46PatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220419-0004/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/06/19/1Mailing ListThird Party Advisory
FAQ
What is CVE-2021-3609?
CVE-2021-3609 is a vulnerability with a CVSS score of 7.0 (HIGH). .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 ...
How severe is CVE-2021-3609?
CVE-2021-3609 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3609?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat 3Scale Api Management, Redhat Build Of Quarkus, Redhat Codeready Linux Builder Eus, Redhat Codeready Linux Builder For Power Little Endian Eus.