CVE-2018-20544 Denial of service in n/a
A floating point exception in libcaca's dithering function allows attackers to 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-2018-20544?
CVE-2018-20544 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 28 Dec 2018. 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
There is floating point exception at caca/dither.c (function caca_dither_bitmap) in libcaca 0.99.beta19.
Weakness: CWE-369
Which versions are affected by CVE-2018-20544?
It affects 3 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Libcaca Project Libcaca.
How do I fix CVE-2018-20544?
Apply the vendor's patch.
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-2018-20544 being exploited?
There is no known exploitation of CVE-2018-20544 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-20544, GHSA-2chw-xgww-wgp9, UBUNTU-CVE-2018-20544.