CVE-2022-0562 Null dereference in libtiff

What is CVE-2022-0562?

CVE-2022-0562 is a medium-severity vulnerability in Debian Debian Linux, published on 11 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Null source pointer passed as an argument to memcpy() function within TIFFReadDirectory() in tif_dirread.c in libtiff versions from 4.0 to 4.3.0 could lead to Denial of Service via crafted TIFF file. For users that compile libtiff from sources, a fix is available with commit 561599c.

Weakness: CWE-476

Which versions are affected by CVE-2022-0562?

It affects 4 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Libtiff Libtiff, Netapp Ontap Select Deploy Administration Utility.

How do I fix CVE-2022-0562?

Apply the vendor's patch.

Is CVE-2022-0562 being exploited?

There is no known exploitation of CVE-2022-0562 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• 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-2022-0562, AZL-44088, AZL-8529, DEBIAN-CVE-2022-0562, GHSA-6ph5-gf8v-wvm9, JLSEC-2025-261 and 1 more.