CVE-2018-20542 Memory corruption in n/a

High 8.8 Published 28 Dec 2018 Updated 5 Aug 2024

A heap-based buffer overflow in the LIBXSMM library allows attackers to execute arbitrary code or cause a denial of service.

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: Available

What is CVE-2018-20542?

CVE-2018-20542 is a high-severity memory corruption 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 a heap-based buffer-overflow at generator_spgemm_csc_reader.c (function libxsmm_sparse_csc_reader) in LIBXSMM 1.10, a different vulnerability than CVE-2018-20541 (which is in a different part of the source code and is seen at a different address).

Weakness: CWE-119

Which versions are affected by CVE-2018-20542?

It affects 1 product.

Products include Libxsmm Project Libxsmm.

How do I fix CVE-2018-20542?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-20542 being exploited?

There is no known exploitation of CVE-2018-20542 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-20542, GHSA-2w48-ph92-rq3j.