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    CVE-2011-4868

    The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.

    Published:Jan 12, 2012
    Last Modified:Apr 11, 2025
    EPS:Jan 15, 2012
    EPSS Score:0.00846
    CVSS Score:6.1

    Affected Products

    Vendor
    Isc
    Product
    Dhcp

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2018-5733 (CVSS 7.5) — A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP serv…
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    CVE-2016-2774 (CVSS 5.9) — ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent …
    CVE-2015-8605 (CVSS 6.5) — ISC DHCP 4.x before 4.1-ESV-R12-P1, 4.2.x, and 4.3.x before 4.3.3-P1 allows remote attackers to cause a denial…
    CVE-2013-2494 (CVSS 4.9) — libdns in ISC DHCP 4.2.x before 4.2.5-P1 allows remote name servers to cause a denial of service (memory consu…
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    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