QID 198507

Date Published: 2021-09-28

QID 198507: Ubuntu Security Notification for Linux kernel (Raspberry Pi) Vulnerabilities (USN-5073-3)

The can broadcast manger (bcm) protocol implementation in the linux kernel did not properly initialize memory in some situations.
The joystick device interface in the linux kernel did not properly validate data passed via an ioctl().the virtio console implementation in the linux kernel did not properly validate input lengths in some situations.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

a local attacker could use this to expose sensitive information (kernel memory) (cve-2021-34693).
A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. (
Cve-2021-3612).
A local attacker could possibly use this to cause a denial of service (system crash) (cve-2021-38160).

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as High - 7.2 severity.
    • Solution
    Refer to Ubuntu advisory: USN-5073-3 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198507

    CVE-2021-3612 | CVE-2021-38160 | CVE-2021-34693 |
    Software Advisories
    Advisory ID Software Component Link
    USN-5073-3 Ubuntu Linux URL Logo ubuntu.com/security/notices/USN-5073-3
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].