UBUNTU-CVE-2021-3930

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    UBUNTU-CVE-2021-3930

    Published: 18 Feb 2022Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-3930

    Summary:

    Details: An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.

    References: https://ubuntu.com/security/CVE-2021-3930, https://ubuntu.com/security/notices/USN-5307-1, https://ubuntu.com/security/notices/USN-5772-1, https://www.cve.org/CVERecord?id=CVE-2021-3930

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-2ubuntu1.47+esm2?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.0+dfsg-2ubuntu1.47+esm2

    Affected versions

    1.5.0+dfsg-3ubuntu5
    1.5.0+dfsg-3ubuntu6

    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-2021-3930 | CVE-DB