CVE-2018-20846 Denial of service in n/a
Remote attackers can cause a denial of service via out-of-bounds accesses in OpenJPEG, affecting applications using the library.
- 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-2018-20846?
CVE-2018-20846 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
Out-of-bounds accesses in the functions pi_next_lrcp, pi_next_rlcp, pi_next_rpcl, pi_next_pcrl, pi_next_rpcl, and pi_next_cprl in openmj2/pi.c in OpenJPEG through 2.3.0 allow remote attackers to cause a denial of service (application crash).
Weakness: CWE-20
Which versions are affected by CVE-2018-20846?
It affects 1 product.
Products include Uclouvain Openjpeg.
How do I fix CVE-2018-20846?
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-2018-20846 being exploited?
There is no known exploitation of CVE-2018-20846 in the wild and no public exploit code.
Other vulnerabilities in Uclouvain Openjpeg
Sources
Also known as DEBIAN-CVE-2018-20846, ECHO-85f8-13d6-6594, GHSA-g752-v9rv-66cg, UBUNTU-CVE-2018-20846.