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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2019-14664)

Note that Nessus relies on the presence of the package as reported by the vendor.

Security fix for CVE-2019-14664, CVE-2019-12269 and compatibility with Thunderbird 68

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
254693	Linux Distros Unpatched Vulnerability : CVE-2019-14664	Nessus	Misc.	medium
131171	Fedora 31 : thunderbird-enigmail (2019-951d5dcaf9)	Nessus	Fedora Local Security Checks	high
131170	Fedora 29 : thunderbird-enigmail (2019-941d57ed72)	Nessus	Fedora Local Security Checks	high
131091	Fedora 30 : thunderbird-enigmail (2019-45a744b873)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2019-14664

medium

Tenable Plugins

medium

high

high

high