CVE-2021-3476 Integer overflow in OpenEXR

What is CVE-2021-3476?

CVE-2021-3476 is a medium-severity vulnerability in Debian Debian Linux, published on 30 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.

Weakness: CWE-190

Which versions are affected by CVE-2021-3476?

It affects 2 products.

Products include Debian Debian Linux, Openexr Openexr.

How do I fix CVE-2021-3476?

Upgrade to a fixed version.

Is CVE-2021-3476 being exploited?

There is no known exploitation of CVE-2021-3476 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 AZL-44922, DEBIAN-CVE-2021-3476, GHSA-xxv7-22hc-322m, UBUNTU-CVE-2021-3476.