CVE-2018-7421

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    CVE-2018-7421

    Published: 23 Feb 2018Last Modified: 8 Jul 2026

    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://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=656812ee1f2a8ddfd383b02a066e888f5919e17a, https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=e8be5adae469ba563acfad2c2b98673e1afaf901, https://www.wireshark.org/security/wnpa-sec-2018-06.html, https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14408

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 5368c50be46d4a44986d12bdfc0a35b42c0f34fc
    Fixed -None

    Affected versions

    wireshark-2.2.12
    wireshark-2.2.11
    wireshark-2.2.10
    wireshark-2.2.9
    wireshark-2.2.8
    wireshark-2.2.7
    wireshark-2.2.6
    wireshark-2.2.5
    wireshark-2.2.4
    wireshark-2.2.3
    wireshark-2.2.2
    wireshark-2.2.1
    wireshark-2.2.0

    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