UBUNTU-CVE-2018-18898

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    UBUNTU-CVE-2018-18898

    Published: 21 Mar 2019Last Modified: 4 Feb 2026
    Upstream:
    CVE-2018-18898
    Aliases:
    USN-4517-1

    Summary:

    Details: The email-ingestion feature in Best Practical Request Tracker 4.1.13 through 4.4 allows denial of service by remote attackers via an algorithmic complexity attack on email address parsing.

    References: https://ubuntu.com/security/CVE-2018-18898, https://github.com/bestpractical/email-address-list/commit/a22e6b233443fe3ad1a408e50ecbd7237674817d, https://github.com/bestpractical/email-address-list/commit/6dd5021a6e5df2e8c86a163dc2e180a76a38e63b, https://github.com/bestpractical/email-address-list/commit/31bd4dc2dfb26fd6a17e4436df3d3c8904856f30, https://ubuntu.com/security/notices/USN-4517-1, https://www.cve.org/CVERecord?id=CVE-2018-18898

    Affected packages

    Package

    Name: libemail-address-list-perl

    Purl: pkg:deb/ubuntu/[email protected]+deb9u1build0.16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.05-1+deb9u1build0.16.04.1

    Affected versions

    0.05-1

    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