UBUNTU-CVE-2021-4204

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    UBUNTU-CVE-2021-4204

    Published: 11 Jan 2022Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-4204

    Summary:

    Details: An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.

    References: https://ubuntu.com/security/CVE-2021-4204, https://ubuntu.com/security/notices/USN-5217-1, https://ubuntu.com/security/notices/USN-5218-1, https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/impish/commit/?id=53fb7741ff9d546174dbb585957b4f8b6afbdb83, https://ubuntu.com/security/notices/USN-5219-1, https://www.cve.org/CVERecord?id=CVE-2021-4204

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2021-4204 | CVE-DB