CVE-2022-0582 Denial of service in Wireshark

What is CVE-2022-0582?

CVE-2022-0582 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 14 Feb 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

Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Weakness: CWE-476

Which versions are affected by CVE-2022-0582?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Wireshark Wireshark.

How do I fix CVE-2022-0582?

Upgrade to a fixed version.

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-2022-0582 being exploited?

There is no known exploitation of CVE-2022-0582 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 AZL-8589, DEBIAN-CVE-2022-0582, GHSA-f9cx-48m4-2xp7, UBUNTU-CVE-2022-0582.