CVE-2021-33589 Weak cryptography in n/a

High 7.5 Published 21 Apr 2023 Updated 4 Feb 2025

Attackers can decrypt data more easily than intended because the RNP library skips a required step in its cryptographic algorithm.

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

What is CVE-2021-33589?

CVE-2021-33589 is a high-severity vulnerability in n/a, published on 21 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Ribose RNP before 0.15.1 does not implement a required step in a cryptographic algorithm, resulting in weaker encryption than on the tin of the algorithm.

Weakness: CWE-522

Which versions are affected by CVE-2021-33589?

It affects 1 product.

Products include Ribose Rnp.

How do I fix CVE-2021-33589?

Upgrade to a fixed version.

Is CVE-2021-33589 being exploited?

There is no known exploitation of CVE-2021-33589 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2021-33589, GHSA-85rv-559q-9c4r, UBUNTU-CVE-2021-33589, openSUSE-SU-2024:11302-1.