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    CVE-2016-6888

    Integer overflow in the net_tx_pkt_init function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU process crash) via the maximum fragmentation count, which triggers an unchecked multiplication and NULL pointer dereference.

    Published:Aug 9, 2016
    Last Modified:Apr 12, 2025
    EPS:Dec 10, 2016
    EPSS Score:0.00098
    CVSS Score:4.4

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Qemu
    Product
    Qemu
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Openstack
    Vendor
    Redhat
    Product
    Virtualization

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

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    References

    http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=47882fa4975bf0b58dd74474329fdd7154e8f04c
    http://www.openwall.com/lists/oss-security/2016/08/19/10
    http://www.openwall.com/lists/oss-security/2016/08/19/6
    http://www.securityfocus.com/bid/92556
    https://access.redhat.com/errata/RHSA-2017:2392
    https://access.redhat.com/errata/RHSA-2017:2408
    https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
    https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg03176.html
    https://security.gentoo.org/glsa/201609-01
    http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=47882fa4975bf0b58dd74474329fdd7154e8f04c
    http://www.openwall.com/lists/oss-security/2016/08/19/10
    http://www.openwall.com/lists/oss-security/2016/08/19/6
    http://www.securityfocus.com/bid/92556
    https://access.redhat.com/errata/RHSA-2017:2392
    https://access.redhat.com/errata/RHSA-2017:2408
    https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
    https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg03176.html
    https://security.gentoo.org/glsa/201609-01

    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