CVE-2022-2520 Denial of service in libtiff

What is CVE-2022-2520?

CVE-2022-2520 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 31 Aug 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A flaw was found in libtiff 4.4.0rc1. There is a sysmalloc assertion fail in rotateImage() at tiffcrop.c:8621 that can cause program crash when reading a crafted input.

Weakness: CWE-617, CWE-131

Which versions are affected by CVE-2022-2520?

It affects 2 products.

Products include Debian Debian Linux, Libtiff Libtiff.

How do I fix CVE-2022-2520?

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-2022-2520 being exploited?

There is no known exploitation of CVE-2022-2520 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-2022-2520, DEBIAN-CVE-2022-2520, GHSA-x8g3-wjf9-c729, OESA-2022-1935.