CVE-2022-2056 Denial of service in libtiff

What is CVE-2022-2056?

CVE-2022-2056 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 30 Jun 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

Divide By Zero error in tiffcrop in libtiff 4.4.0 allows attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit f3a5e010.

Weakness: CWE-369

Which versions are affected by CVE-2022-2056?

It affects 4 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Libtiff Libtiff, Netapp Active Iq Unified Manager.

How do I fix CVE-2022-2056?

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-2022-2056 being exploited?

There is no known exploitation of CVE-2022-2056 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as ALPINE-CVE-2022-2056, AZL-10007, AZL-44847, DEBIAN-CVE-2022-2056, GHSA-9q2x-2q4w-wffw, JLSEC-2025-272 and 1 more.