CVE-2019-14664 Information disclosure in n/a

Medium 6.5 Published 5 Aug 2019 Updated 5 Aug 2024

Attackers can leak plaintext from PGP encrypted emails by hiding them in crafted multipart messages, bypassing EFAIL protections.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2019-14664?

CVE-2019-14664 is a medium-severity vulnerability in Fedoraproject Fedora, published on 5 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-319

Which versions are affected by CVE-2019-14664?

It affects 2 products.

Products include Enigmail Enigmail, Fedoraproject Fedora.

How do I fix CVE-2019-14664?

Upgrade to a fixed version.

Is CVE-2019-14664 being exploited?

There is no known exploitation of CVE-2019-14664 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-14664, GHSA-5gqw-f2qg-w3vf, UBUNTU-CVE-2019-14664.