CVE-2019-8337 Security feature bypass in n/a

Medium 5.3 Published Updated

Attackers can bypass TLS certificate verification in msmtp and mpop when using default settings, enabling man-in-the-middle attacks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2019-8337?

CVE-2019-8337 is a medium-severity vulnerability in n/a, published on 13 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In msmtp 1.8.2 and mpop 1.4.3, when tls_trust_file has its default configuration, certificate-verification results are not properly checked.

Weakness: CWE-295

Which versions are affected by CVE-2019-8337?

It affects 2 products.

Linux distribution packages (1)
mstmp openSUSE:TumbleweedAll versions1.8.16-1.1

Products include Marlam Mpop, Marlam Msmtp.

How do I fix CVE-2019-8337?

Upgrade to a fixed version.

Is CVE-2019-8337 being exploited?

There is no known exploitation of CVE-2019-8337 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-8337, GHSA-84ww-gp3p-3hmw, UBUNTU-CVE-2019-8337, openSUSE-SU-2024:11064-1.

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