CVE-2021-20302 Denial of service in OpenEXR
An attacker can cause a denial of service by submitting a crafted file to OpenEXR, triggering a floating-point exception.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-20302?
CVE-2021-20302 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 4 Mar 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A flaw was found in OpenEXR's TiledInputFile functionality. This flaw allows an attacker who can submit a crafted single-part non-image to be processed by OpenEXR, to trigger a floating-point exception error. The highest threat from this vulnerability is to system availability.
Weakness: CWE-20
Which versions are affected by CVE-2021-20302?
It affects 2 products.
Products include Debian Debian Linux, Openexr Openexr.
How do I fix CVE-2021-20302?
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-2021-20302 being exploited?
There is no known exploitation of CVE-2021-20302 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2021-20302, GHSA-xj9w-76w3-9v9v, UBUNTU-CVE-2021-20302.