CVE-2014-3640

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    CVE-2014-3640

    Published: 7 Nov 2014Last Modified: 16 Apr 2026

    Summary:

    Details: The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket.

    References: http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg03543.html, http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04598.html, http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04707.html, http://rhn.redhat.com/errata/RHSA-2015-0349.html, http://rhn.redhat.com/errata/RHSA-2015-0624.html, http://www.debian.org/security/2014/dsa-3044, http://www.debian.org/security/2014/dsa-3045, http://www.ubuntu.com/usn/USN-2409-1, http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg03543.html, http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04598.html, http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04707.html, https://bugzilla.redhat.com/show_bug.cgi?id=1144818

    Affected packages

    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