UBUNTU-CVE-2020-11869

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    UBUNTU-CVE-2020-11869

    Published: 27 Apr 2020Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-11869
    Aliases:
    USN-4372-1

    Summary:

    Details: An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.

    References: https://ubuntu.com/security/CVE-2020-11869, https://www.openwall.com/lists/oss-security/2020/04/24/2, https://ubuntu.com/security/notices/USN-4372-1, https://www.cve.org/CVERecord?id=CVE-2020-11869

    Affected packages

    Package

    Name: qemu

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

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

    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-2020-11869 | CVE-DB