CVE-2022-28656 Denial of service in Apport

What is CVE-2022-28656?

CVE-2022-28656 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 4 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

is_closing_session() allows users to consume RAM in the Apport process

Weakness: CWE-770

Which versions are affected by CVE-2022-28656?

It affects 2 products.

Products include Apport Project Apport, Canonical Ubuntu Linux.

How do I fix CVE-2022-28656?

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-2022-28656 being exploited?

There is no known exploitation of CVE-2022-28656 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2022-28657 Denial of service in Apport High 7.8
• CVE-2018-6552 Apport treats the container PID as the global PID when /proc/<global_pid>/ is missing High 7.8
• CVE-2017-14177 Privilege escalation in Apport High 7.8
• CVE-2017-14179 Privilege escalation in Apport High 7.8
• CVE-2017-14180 Privilege escalation in Apport High 7.8

All Canonical Ubuntu Linux vulnerabilities

Sources

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

Also known as GHSA-cx5x-4q8r-qxcm, UBUNTU-CVE-2022-28656.