QID 198365

Date Published: 2021-05-17

QID 198365: Ubuntu Security Notification for Linux kernel (OEM) vulnerabilities (USN-4948-1)

The ebpf implementation in the linux kernel did not properly verify that a bpf program only reserved as much memory for a ring buffer as was allocated

A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code
(CVE-2021-3489)

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as High - 7.2 severity.
    • Solution
    Refer to Ubuntu advisory: USN-4948-1 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198365

    CVE-2021-28951 | CVE-2021-28964 | CVE-2021-29646 | CVE-2021-28971 | CVE-2021-29264 | CVE-2021-29266 | CVE-2021-3489 | CVE-2021-28972 | CVE-2021-28952 | CVE-2020-25672 | CVE-2021-29647 | CVE-2021-29650 | CVE-2021-31916 | CVE-2020-25670 | CVE-2021-3490 | CVE-2021-29649 | CVE-2021-3483 | CVE-2021-28688 | CVE-2020-25671 | CVE-2021-3491 | CVE-2021-29657 |
    Software Advisories
    Advisory ID Software Component Link
    USN-4948-1 Ubuntu Linux URL Logo usn.ubuntu.com/4948-1
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