CVE-2016-6885 Use after free in n/a

High 7.5 Published 13 Jan 2017 Updated 6 Aug 2024

Remote attackers can cause a denial of service via invalid free in MatrixSSL's modular exponentiation function.

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-2016-6885?

CVE-2016-6885 is a high-severity use after free 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_exptmod function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid free and crash) via a base zero value for the modular exponentiation.

Weakness: CWE-416

Which versions are affected by CVE-2016-6885?

It affects 1 product.

Products include Matrixssl Matrixssl.

How do I fix CVE-2016-6885?

No fix has been published for CVE-2016-6885 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2016-6885 being exploited?

There is no known exploitation of CVE-2016-6885 in the wild and no public exploit code.

Sources

Also known as GHSA-vxfx-q6cx-2vqm.