CVE-2019-10732 Information disclosure in n/a

Medium 4.3 Published Updated

Attackers can leak plaintext from encrypted emails by hiding them in crafted multipart messages, tricking users into replying with the decrypted content.

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-2019-10732?

CVE-2019-10732 is a medium-severity vulnerability in Debian Debian Linux, published on 7 Apr 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 KDE KMail 5.2.3, an attacker in possession of S/MIME or 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, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.

Weakness: CWE-319

Which versions are affected by CVE-2019-10732?

It affects 2 products.

Linux distribution packages (2)
messagelib SUSE:Package Hub 15 SP1All versions18.12.3-bp151.3.3.1
messagelib openSUSE:Leap 15.1All versions18.12.3-lp151.2.4.1

Products include Debian Debian Linux, Kde Kmail.

How do I fix CVE-2019-10732?

Apply the vendor's patch.

Is CVE-2019-10732 being exploited?

There is no known exploitation of CVE-2019-10732 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-10732, DLA-1825-1, GHSA-87wx-cphx-3wgj, MGASA-2021-0067, UBUNTU-CVE-2019-10732, openSUSE-SU-2021:0188-1 and 1 more.

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