CVE-2021-20303 Integer overflow in OpenEXR

What is CVE-2021-20303?

CVE-2021-20303 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 found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.

Weakness: CWE-190

Which versions are affected by CVE-2021-20303?

It affects 2 products.

Products include Debian Debian Linux, Openexr Openexr.

How do I fix CVE-2021-20303?

Apply the vendor's patch.

Is CVE-2021-20303 being exploited?

There is no known exploitation of CVE-2021-20303 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2021-20303, GHSA-vhq7-5jv5-9gwf, OESA-2022-1583, UBUNTU-CVE-2021-20303.