CVE-2012-3955

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    CVE-2012-3955

    Published: 14 Sept 2012Last Modified: 10 Apr 2026

    Summary:

    Details: ISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of service (daemon crash) in opportunistic circumstances by establishing an IPv6 lease in an environment where the lease expiration time is later reduced.

    References: http://lists.fedoraproject.org/pipermail/package-announce/2012-October/088882.html, http://lists.fedoraproject.org/pipermail/package-announce/2012-September/086992.html, http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088220.html, http://lists.opensuse.org/opensuse-updates/2012-09/msg00088.html, http://lists.opensuse.org/opensuse-updates/2012-09/msg00103.html, http://lists.opensuse.org/opensuse-updates/2012-09/msg00105.html, http://rhn.redhat.com/errata/RHSA-2013-0504.html, http://secunia.com/advisories/51318, http://security.gentoo.org/glsa/glsa-201301-06.xml, http://www.debian.org/security/2012/dsa-2551, http://www.mandriva.com/security/advisories?name=MDVSA-2012:153, http://www.securityfocus.com/bid/55530, http://www.securitytracker.com/id?1027528, http://www.ubuntu.com/usn/USN-1571-1, https://blogs.oracle.com/sunsecurity/entry/cve_2012_3955_denial_of, https://kb.isc.org/article/AA-00779, http://lists.opensuse.org/opensuse-updates/2012-09/msg00088.html, http://lists.opensuse.org/opensuse-updates/2012-09/msg00103.html, http://lists.opensuse.org/opensuse-updates/2012-09/msg00105.html

    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