UBUNTU-CVE-2021-3544

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    UBUNTU-CVE-2021-3544

    Published: 2 Jun 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-3544

    Summary:

    Details: Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.

    References: https://ubuntu.com/security/CVE-2021-3544, https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01155.html, https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01151.html, https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01157.html, https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01152.html, https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01156.html, https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01158.html, https://ubuntu.com/security/notices/USN-5010-1, https://ubuntu.com/security/notices/USN-5307-1, https://www.cve.org/CVERecord?id=CVE-2021-3544

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/qemu@1:4.2-3ubuntu6.17?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:4.2-3ubuntu6.17

    Affected versions

    1:4.0+dfsg-0ubuntu9

    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-2021-3544 | CVE-DB