CVE-2017-17847

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    CVE-2017-17847

    Published: 27 Dec 2017Last Modified: 16 Apr 2026

    Summary:

    Details: An issue was discovered in Enigmail before 1.9.9. Signature spoofing is possible because the UI does not properly distinguish between an attachment signature, and a signature that applies to the entire containing message, aka TBE-01-021. This is demonstrated by an e-mail message with an attachment that is a signed e-mail message in message/rfc822 format.

    References: https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html, https://www.mail-archive.com/enigmail-users%40enigmail.net/msg04280.html, https://lists.debian.org/debian-security-announce/2017/msg00333.html, https://sourceforge.net/p/enigmail/bugs/709/, https://www.debian.org/security/2017/dsa-4070, https://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf

    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
    CVE-2017-17847 | CVE-DB