medium
6.5
CWE
319
Advisory Published
Updated

CVE-2019-14664

First published: Mon Aug 05 2019(Updated: )

In Enigmail below 2.1, an attacker in possession of PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, he unknowingly leaks the plaintext of the encrypted message part(s) back to the attacker. This attack variant bypasses protection mechanisms implemented after the "EFAIL" attacks.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Enigmail Enigmail<2.1
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Fedoraproject Fedora=32

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-14664?

    The severity of CVE-2019-14664 is medium with a CVSS score of 6.5.

  • How does CVE-2019-14664 affect Enigmail and Fedora?

    Enigmail versions below 2.1 and Fedora versions 30, 31, and 32 are affected by CVE-2019-14664.

  • How can an attacker exploit CVE-2019-14664?

    An attacker in possession of PGP encrypted emails can craft a multipart email, hiding the encrypted parts using HTML/CSS or ASCII newline characters.

  • What is the fix for CVE-2019-14664?

    Update Enigmail to version 2.1 or later, and update Fedora to the latest available version.

  • Where can I find more information about CVE-2019-14664?

    More information about CVE-2019-14664 can be found at the following references: [Reference 1](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVNTEF3WSOOQYKMIPEH7F77UPXES5BU5/), [Reference 2](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CYWBJHSBBLAHKMRWDWH2XXQDYAGDHB5I/), [Reference 3](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GHC5WDQ47FQSL5CTGQUYIHVC3RNZ7UH5/)

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