CVE-2016-4439

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    CVE-2016-4439

    Published: 20 May 2016Last Modified: 8 Jul 2026

    Summary:

    Details: The esp_reg_write function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (FSC) support in QEMU does not properly check command buffer length, which allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or potentially execute arbitrary code on the QEMU host via unspecified vectors.

    References: http://www.securityfocus.com/bid/90760, http://www.ubuntu.com/usn/USN-3047-1, http://www.ubuntu.com/usn/USN-3047-2, https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html, https://security.gentoo.org/glsa/201609-01, https://bugzilla.redhat.com/show_bug.cgi?id=1337502, http://www.openwall.com/lists/oss-security/2016/05/19/3, https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    v2.6.0
    v2.6.0-rc5
    v2.6.0-rc4
    v2.6.0-rc3
    v2.6.0-rc2
    v2.6.0-rc1
    v2.6.0-rc0

    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
    CVE-2016-4439 | CVE-DB