UBUNTU-CVE-2018-6836

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    UBUNTU-CVE-2018-6836

    Published: 8 Feb 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-6836

    Summary:

    Details: The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

    References: https://ubuntu.com/security/CVE-2018-6836, https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397, https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=28960d79cca262ac6b974f339697b299a1e28fef, https://code.wireshark.org/review/#/c/25660/, https://code.wireshark.org/review/#/c/25660/2/wiretap/netmon.c, https://www.cve.org/CVERecord?id=CVE-2018-6836

    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
    UBUNTU-CVE-2018-6836 | CVE-DB