CVE-2018-12404 Weak cryptography in Network Security Services (NSS)

Medium 5.9 Published Updated

A side-channel attack in NSS RSA handshakes allows attackers to decrypt encrypted content via a Bleichenbacher variant.

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

What is CVE-2018-12404?

CVE-2018-12404 is a medium-severity vulnerability in Mozilla Network Security Services, published on 2 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.

Which versions are affected by CVE-2018-12404?

It affects 1 product.

Linux distribution packages (1)
mozilla-nss openSUSE:Leap 15.0All versions3.41.1-lp150.2.16.1

Products include Mozilla Network Security Services.

How do I fix CVE-2018-12404?

Upgrade to a fixed version.

Is CVE-2018-12404 being exploited?

There is no known exploitation of CVE-2018-12404 in the wild and no public exploit code.

All Mozilla Network Security Services vulnerabilities

Sources

Also known as ALPINE-CVE-2018-12404, DEBIAN-CVE-2018-12404, GHSA-54r4-cg3v-pxw7, MGASA-2018-0482, UBUNTU-CVE-2018-12404, openSUSE-SU-2019:0183-1.

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