CVE-2019-11471 Use after free in n/a

High 8.8 Published 23 Apr 2019 Updated 4 Aug 2024

A use-after-free vulnerability in libheif allows attackers to execute arbitrary code or cause a denial of service via crafted HEIF 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-2019-11471?

CVE-2019-11471 is a high-severity use after free vulnerability in n/a, published on 23 Apr 2019. 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

libheif 1.4.0 has a use-after-free in heif::HeifContext::Image::set_alpha_channel in heif_context.h because heif_context.cc mishandles references to non-existing alpha images.

Weakness: CWE-416

Which versions are affected by CVE-2019-11471?

It affects 1 product.

Products include Struktur Libheif.

How do I fix CVE-2019-11471?

Upgrade to a fixed version.

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-2019-11471 being exploited?

There is no known exploitation of CVE-2019-11471 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2019-11471, DEBIAN-CVE-2019-11471, GHSA-25gq-3qmx-682c, MGASA-2019-0290, UBUNTU-CVE-2019-11471.