CVE-2020-23109 Memory corruption in n/a

High 8.1 Published 3 Nov 2021 Updated 4 Aug 2024

A buffer overflow in libheif allows attackers to cause denial of service and disclose sensitive information via a crafted HEIF file.

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-2020-23109?

CVE-2020-23109 is a high-severity memory corruption vulnerability in n/a, published on 3 Nov 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

Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

Weakness: CWE-120

Which versions are affected by CVE-2020-23109?

It affects 1 product.

Products include Struktur Libheif.

How do I fix CVE-2020-23109?

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-2020-23109 being exploited?

There is no known exploitation of CVE-2020-23109 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-23109, GHSA-ccjv-v7wq-hv5p, UBUNTU-CVE-2020-23109, openSUSE-SU-2024:12451-1.