CVE-2022-1622 Denial of service in libtiff

What is CVE-2022-1622?

CVE-2022-1622 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 11 May 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

LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tif_lzw.c:619, allowing 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 b4e79bfa.

Weakness: CWE-125

Which versions are affected by CVE-2022-1622?

It affects 7 products.

Products include Apple Iphone Os, Apple Macos, Apple Tvos, Apple Watchos, Fedoraproject Fedora, Libtiff Libtiff and 1 more.

How do I fix CVE-2022-1622?

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-2022-1622 being exploited?

There is no known exploitation of CVE-2022-1622 in the wild and no public exploit code.

Other vulnerabilities in Apple Iphone Os

• CVE-2021-30666 Apple iOS WebKit Buffer Overflow Exploited High 8.8
• CVE-2021-30761 Apple iOS WebKit Memory Corruption Exploited High 8.8
• CVE-2021-30762 Apple iOS WebKit Use-After-Free Exploited High 8.8
• CVE-2016-4657 Apple iOS Webkit Memory Corruption Exploited High 8.8
• CVE-2019-7286 Apple Multiple Products Memory Corruption Exploited High 7.8

All Apple Iphone Os vulnerabilities

Sources

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

Also known as AZL-9733, DEBIAN-CVE-2022-1622, GHSA-8xfg-6grw-wvxc, JLSEC-2025-270.