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    CVE-2019-6474

    A missing check on incoming client requests can be exploited to cause a situation where the Kea server's lease storage contains leases which are rejected as invalid when the server tries to load leases from storage on restart. If the number of such leases exceeds a hard-coded limit in the Kea code, a server trying to restart will conclude that there is a problem with its lease store and give up. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2

    Published:Oct 16, 2019
    Last Modified:Nov 21, 2024
    EPS:Oct 16, 2019
    EPSS Score:0.01595
    CVSS Score:5.7

    Affected Products

    Vendor
    Isc
    Product
    Kea

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-469 HTTP DoS

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    CVE-2019-6472 (CVSS 6.5) — A packet containing a malformed DUID can cause the Kea DHCPv6 server process (kea-dhcp6) to exit due to an ass…
    CVE-2018-5739 (CVSS 6.5) — An extension to hooks capabilities which debuted in Kea 1.4.0 introduced a memory leak for operators who are u…
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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