CVE-2021-20300 Integer overflow in OpenEXR
An attacker can cause a denial of service by submitting a crafted file that triggers an integer overflow in the OpenEXR library.
- 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-2021-20300?
CVE-2021-20300 is a medium-severity 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 hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. The highest threat from this vulnerability is to system availability.
Weakness: CWE-190
Which versions are affected by CVE-2021-20300?
It affects 2 products.
Products include Debian Debian Linux, Openexr Openexr.
How do I fix CVE-2021-20300?
Apply the vendor's patch.
Is CVE-2021-20300 being exploited?
There is no known exploitation of CVE-2021-20300 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2021-20300, GHSA-2w35-7f77-cj55, UBUNTU-CVE-2021-20300.