CVE-2016-6886 Denial of service in n/a

High 7.5 Published 13 Jan 2017 Updated 6 Aug 2024

Remote attackers can cause a denial of service via invalid memory read in MatrixSSL during RSA key exchange.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2016-6886?

CVE-2016-6886 is a high-severity denial of service vulnerability in n/a, published on 13 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.

Weakness: CWE-320

Which versions are affected by CVE-2016-6886?

It affects 1 product.

Products include Matrixssl Matrixssl.

How do I fix CVE-2016-6886?

No fix has been published for CVE-2016-6886 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-6886 being exploited?

There is no known exploitation of CVE-2016-6886 in the wild and no public exploit code.

Sources

Also known as GHSA-j6ff-73m6-rqcf.