CVE-2022-31747

What it actually does

Memory corruption bugs present in the product that could be exploited to execute arbitrary code.

Why it matters to the business

Attackers could remotely compromise systems running unpatched versions, leading to full system takeover and data loss; the issue affects widely used open-source components with many downstream dependents.

How an attack unfolds

An attacker sends specially crafted input over the network that triggers one of the memory safety bugs, corrupting memory and allowing arbitrary code execution with no user interaction required.

How to fix it

Upgrade libexpat/libexpat (GIT) to the fixed commit d77291a4824d78e697c5dc2b8024fd65ab31e209; apply the update immediately given the high CVSS and public disclosure more than three years ago.

How to confirm the fix worked

Verify the installed version matches or exceeds the fixed commit d77291a4824d78e697c5dc2b8024fd65ab31e209 and confirm no memory corruption occurs with known test cases.

Typical attack path

1. Identify unpatched instance of the affected product
2. Craft and deliver malicious network payload
3. Trigger memory corruption condition
4. Execute arbitrary code on the target system

How to detect it

Review application logs and process crash reports for signs of memory corruption or unexpected code execution attempts; check system memory dumps for anomalies after suspicious network traffic.

What your security team should do

• Prioritize patching all instances to the fixed commit within 48 hours
• Scan the environment for any remaining vulnerable versions
• Monitor for unusual memory or process behavior post-update