CVE-2019-20023 Denial of service in n/a
A memory leak in the Sixel image library allows attackers to cause a denial of service via 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-2019-20023?
CVE-2019-20023 is a medium-severity denial of service vulnerability in n/a, published on 27 Dec 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
A memory leak was discovered in image_buffer_resize in fromsixel.c in libsixel 1.8.4.
Weakness: CWE-401
Which versions are affected by CVE-2019-20023?
It affects 1 product.
Products include Saitoha Libsixel.
How do I fix CVE-2019-20023?
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-2019-20023 being exploited?
There is no known exploitation of CVE-2019-20023 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-20023, GHSA-273r-q5cp-p9c2, UBUNTU-CVE-2019-20023.