CVE-2021-41715 Use after free in n/a

High 8.8 Published Updated

A use-after-free vulnerability in libsixel allows attackers to potentially execute arbitrary code or cause a denial of service via crafted input.

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-2021-41715?

CVE-2021-41715 is a high-severity use after free vulnerability in n/a, published on 8 Apr 2022. 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

libsixel 1.10.0 is vulnerable to Use after free in libsixel/src/dither.c:379.

Weakness: CWE-416

Which versions are affected by CVE-2021-41715?

It affects 1 product.

Products include Libsixel Libsixel.

How do I fix CVE-2021-41715?

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-2021-41715 being exploited?

There is no known exploitation of CVE-2021-41715 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2021-41715, GHSA-fhx3-m6mw-q9gh, UBUNTU-CVE-2021-41715.

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