CVE-2020-19498 Denial of service in n/a

High 8.8 Published 21 Jul 2021 Updated 4 Aug 2024

Attackers can cause a denial of service via a floating point exception in the libheif library when processing crafted images.

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-2020-19498?

CVE-2020-19498 is a high-severity denial of service vulnerability in n/a, published on 21 Jul 2021. 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

Floating point exception in function Fraction in libheif 1.4.0, allows attackers to cause a Denial of Service or possibly other unspecified impacts.

Which versions are affected by CVE-2020-19498?

It affects 1 product.

Products include Struktur Libheif.

How do I fix CVE-2020-19498?

Upgrade to a fixed version.

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-2020-19498 being exploited?

There is no known exploitation of CVE-2020-19498 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-19498, GHSA-36hj-m3c2-4ggw.