UBUNTU-CVE-2018-1000858

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    UBUNTU-CVE-2018-1000858

    Published: 20 Dec 2018Last Modified: 4 Feb 2026
    Aliases:
    USN-3853-1

    Summary:

    Details: GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.

    References: https://ubuntu.com/security/CVE-2018-1000858, https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html, https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html, https://ubuntu.com/security/notices/USN-3853-1, https://www.cve.org/CVERecord?id=CVE-2018-1000858

    Affected packages

    Package

    Name: gnupg2

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.2.4-1ubuntu1.2

    Affected versions

    2.1.15-1ubuntu8

    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