CVE-2019-8338

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    CVE-2019-8338

    Published: 16 May 2019Last Modified: 10 Mar 2026

    Summary:

    Details: The signature verification routine in the Airmail GPG-PGP Plugin, versions 1.0 (9) and earlier, does not verify the status of the signature at all, which allows remote attackers to spoof arbitrary email signatures by crafting a signed email with an invalid signature. Also, it does not verify the validity of the signing key, which allows remote attackers to spoof arbitrary email signatures by crafting a key with a fake user ID (email address) and injecting it into the user's keyring.

    References: , http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html, http://seclists.org/fulldisclosure/2019/Apr/38, https://github.com/RUB-NDS/Johnny-You-Are-Fired, https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf, https://www.openwall.com/lists/oss-security/2019/04/30/4, https://github.com/Airmail/AirmailPlugIn-Framework/commits/master

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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