CVE-2018-12372 Information disclosure in Thunderbird
Attackers can leak plaintext from decrypted S/MIME emails by crafting specific HTML replies or forwards in Thunderbird.
- 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-2018-12372?
CVE-2018-12372 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 18 Oct 2018. 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
Decrypted S/MIME parts, when included in HTML crafted for an attack, can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 52.9.
Weakness: CWE-200
Which versions are affected by CVE-2018-12372?
It affects 7 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Mozilla Thunderbird, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 1 more.
How do I fix CVE-2018-12372?
Upgrade to a fixed version.
Is CVE-2018-12372 being exploited?
There is no known exploitation of CVE-2018-12372 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-12372, GHSA-gfx4-4m6p-57vj, UBUNTU-CVE-2018-12372.