CVE-2020-21050 Memory corruption in n/a
A stack buffer overflow in Libsixel allows attackers to execute arbitrary code or cause denial of service via crafted GIF files.
- 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-2020-21050?
CVE-2020-21050 is a medium-severity memory corruption vulnerability in n/a, published on 14 Sep 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
Libsixel prior to v1.8.3 contains a stack buffer overflow in the function gif_process_raster at fromgif.c.
Weakness: CWE-787
Which versions are affected by CVE-2020-21050?
It affects 1 product.
Products include Saitoha Libsixel.
How do I fix CVE-2020-21050?
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-2020-21050 being exploited?
There is no known exploitation of CVE-2020-21050 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2020-21050, GHSA-v5qv-jjr8-5wpj, UBUNTU-CVE-2020-21050.