CVE-2021-3477 Integer overflow in OpenEXR
An attacker can cause a denial of service in applications using OpenEXR by submitting a crafted file that triggers an integer overflow and out-of-bounds read.
- 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-2021-3477?
CVE-2021-3477 is a medium-severity vulnerability in Debian Debian Linux, published on 31 Mar 2021. 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
There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability.
Which versions are affected by CVE-2021-3477?
It affects 2 products.
Products include Debian Debian Linux, Openexr Openexr.
How do I fix CVE-2021-3477?
Upgrade to a fixed version.
Is CVE-2021-3477 being exploited?
There is no known exploitation of CVE-2021-3477 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-44628, DEBIAN-CVE-2021-3477, GHSA-wr39-hjqv-c783, UBUNTU-CVE-2021-3477.