CVE-2017-17848

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    CVE-2017-17848

    Published: 27 Dec 2017Last Modified: 16 Apr 2026

    Summary:

    Details: An issue was discovered in Enigmail before 1.9.9. In a variant of CVE-2017-17847, signature spoofing is possible for multipart/related messages because a signed message part can be referenced with a cid: URI but not actually displayed. In other words, the entire containing message appears to be signed, but the recipient does not see any of the signed text.

    References: https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf, http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html, http://www.openwall.com/lists/oss-security/2019/04/30/4, https://lists.debian.org/debian-security-announce/2017/msg00333.html, https://www.debian.org/security/2017/dsa-4070, http://seclists.org/fulldisclosure/2019/Apr/38, https://lists.debian.org/debian-lts-announce/2017/12/msg00021.html, https://sourceforge.net/p/enigmail/bugs/709/, https://github.com/RUB-NDS/Johnny-You-Are-Fired

    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-2017-17848 | CVE-DB