CVE-2018-20845 Denial of service in n/a
Remote attackers can cause a denial of service via division-by-zero errors in OpenJPEG image processing functions.
- 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-2018-20845?
CVE-2018-20845 is a medium-severity denial of service vulnerability in Uclouvain Openjpeg, published on 26 Jun 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
Division-by-zero vulnerabilities in the functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl in openmj2/pi.c in OpenJPEG through 2.3.0 allow remote attackers to cause a denial of service (application crash).
Weakness: CWE-369
Which versions are affected by CVE-2018-20845?
It affects 1 product.
Products include Uclouvain Openjpeg.
How do I fix CVE-2018-20845?
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-2018-20845 being exploited?
There is no known exploitation of CVE-2018-20845 in the wild and no public exploit code.
Other vulnerabilities in Uclouvain Openjpeg
Sources
Also known as DEBIAN-CVE-2018-20845, GHSA-mq6f-3mw5-jg7g, UBUNTU-CVE-2018-20845.