CVE-2018-20543 Denial of service in n/a

Medium 6.5 Published 28 Dec 2018 Updated 5 Aug 2024

An attacker can cause a denial of service via excessive memory allocation in the LIBXSMM library's sparse matrix reader.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-20543?

CVE-2018-20543 is a medium-severity denial of service vulnerability in n/a, published on 28 Dec 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

There is an attempted excessive memory allocation at libxsmm_sparse_csc_reader in generator_spgemm_csc_reader.c in LIBXSMM 1.10 that will cause a denial of service.

Weakness: CWE-400

Which versions are affected by CVE-2018-20543?

It affects 1 product.

Products include Libxsmm Project Libxsmm.

How do I fix CVE-2018-20543?

No fix has been published for CVE-2018-20543 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-2018-20543 being exploited?

There is no known exploitation of CVE-2018-20543 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-20543, GHSA-8g8j-64gv-v6ch.