USN-4467-3

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    USN-4467-3

    Published: 22 Feb 2021Last Modified: 10 Feb 2026

    Summary: qemu regression

    Details: USN-4467-1 fixed vulnerabilities in QEMU. The fix for CVE-2020-13754 introduced a regression in certain environments. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Ren Ding, Hanqing Zhao, Alexander Bulekov, and Anatoly Trosinenko discovered that the QEMU incorrectly handled certain msi-x mmio operations. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-13754)

    References: https://ubuntu.com/security/notices/USN-4467-3, https://launchpad.net/bugs/1914883

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.51?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:2.5+dfsg-5ubuntu10.51

    Affected versions

    1:2.3+dfsg-5ubuntu9

    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
    USN-4467-3 | CVE-DB