UBUNTU-CVE-2021-3839

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    UBUNTU-CVE-2021-3839

    Published: 29 Apr 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-3839
    Aliases:
    USN-5401-1

    Summary:

    Details: A flaw was found in the vhost library in DPDK. Function vhost_user_set_inflight_fd() does not validate `msg->payload.inflight.num_queues`, possibly causing out-of-bounds memory read/write. Any software using DPDK vhost library may crash as a result of this vulnerability.

    References: https://ubuntu.com/security/CVE-2021-3839, https://ubuntu.com/security/notices/USN-5401-1, https://www.cve.org/CVERecord?id=CVE-2021-3839

    Affected packages

    Package

    Name: dpdk

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -19.11.12-0ubuntu0.20.04.1

    Affected versions

    18.11.2-4
    18.11.3-1
    18.11.4-1
    18.11.4-1ubuntu1
    18.11.5-1

    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-2021-3839 | CVE-DB