UBUNTU-CVE-2018-7421

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    UBUNTU-CVE-2018-7421

    Published: 23 Feb 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-7421

    Summary:

    Details: In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the DMP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dmp.c by correctly supporting a bounded number of Security Categories for a DMP Security Classification.

    References: https://ubuntu.com/security/CVE-2018-7421, https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14408, https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=656812ee1f2a8ddfd383b02a066e888f5919e17a, https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=e8be5adae469ba563acfad2c2b98673e1afaf901, https://www.wireshark.org/security/wnpa-sec-2018-06.html, https://www.cve.org/CVERecord?id=CVE-2018-7421

    Affected packages

    Package

    Name: wireshark

    Purl: pkg:deb/ubuntu/[email protected]~ubuntu14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.6.3-1~ubuntu14.04.1

    Affected versions

    1.10.2-1
    1.10.3-1
    1.10.5-1ubuntu1
    1.10.5-2
    1.10.6-1

    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