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    CVE-2016-6171

    Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR.

    Published:Feb 9, 2017
    Last Modified:Apr 20, 2025
    EPS:Feb 9, 2017
    EPSS Score:0.01196
    CVSS Score:8.6

    Affected Products

    Vendor
    Knot-dns
    Product
    Knot Dns

    Exploits

    No exploit reference

    References

    http://www.openwall.com/lists/oss-security/2016/07/06/3
    http://www.openwall.com/lists/oss-security/2016/07/06/4
    http://www.securityfocus.com/bid/91678
    https://github.com/sischkg/xfer-limit/blob/master/README.md
    https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS
    https://gitlab.labs.nic.cz/labs/knot/issues/464
    https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html
    http://www.openwall.com/lists/oss-security/2016/07/06/3
    http://www.openwall.com/lists/oss-security/2016/07/06/4
    http://www.securityfocus.com/bid/91678
    https://github.com/sischkg/xfer-limit/blob/master/README.md
    https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS
    https://gitlab.labs.nic.cz/labs/knot/issues/464
    https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html

    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