UBUNTU-CVE-2018-7550

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    UBUNTU-CVE-2018-7550

    Published: 1 Mar 2018Last Modified: 4 Feb 2026
    Upstream:
    CVE-2018-7550
    Aliases:
    USN-3649-1

    Summary:

    Details: The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access.

    References: https://ubuntu.com/security/CVE-2018-7550, https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.html, https://ubuntu.com/security/notices/USN-3649-1, https://www.cve.org/CVERecord?id=CVE-2018-7550

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-2ubuntu1.41?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.0+dfsg-2ubuntu1.41

    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