QID 198655

Date Published: 2022-02-07

QID 198655: Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5268-1)

The icmp implementation in the linux kernel didnot properly handle received icmp error packets.
The bluetooth subsystem in the linux kernelcontained a use-after-free vulnerability.
A race condition existed in the bluetoothsubsystem of the linux kernel, leading to a use-after-free vulnerability.
The firedtv firewire driver in the linux kerneldid not properly perform bounds checking in some situations.

A remote attacker coulduse this to facilitate attacks on udp based services that depend on sourceport randomization.
A local attacker could use thisto cause a denial of service (system crash) or possibly execute arbitrarycode.
Alocal attacker could use this to cause a denial of service (system crash)or possibly execute arbitrary code.
A localattacker could use this to cause a denial of service (system crash) orpossibly execute arbitrary code.

  • CVSS V3 rated as High - 6.7 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Refer to Ubuntu security advisory USN-5268-1 for updates and patch information.
    Vendor References

    CVEs related to QID 198655

    CVE-2021-42739 | CVE-2021-3640 | CVE-2021-3752 | CVE-2021-20322 |
    Software Advisories
    Advisory ID Software Component Link
    USN-5268-1 Ubuntu Linux URL Logo ubuntu.com/security/notices/USN-5268-1
    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].