CVE-2024-38999

What it actually does

Prototype pollution via the s.contexts._.configure function in requirejs allows injection of arbitrary properties into the Object prototype, enabling arbitrary code execution or Denial of Service.

Why it matters to the business

Attackers could execute malicious code or disrupt services on affected Debian Linux systems, leading to potential downtime, data compromise, or system instability; low urgency given stable low EPSS and lack of KEV inclusion despite the high CVSS.

How an attack unfolds

An attacker supplies a malicious configuration object to the vulnerable configure function in requirejs v2.3.6, polluting the prototype to alter application behavior and either execute arbitrary code or trigger a crash; no known threat actors or ransomware campaigns exploiting this CVE.

How to fix it

Upgrade affected Debian 11 packages to version 5.10.216-1 or later; review and update any direct or transitive requirejs dependencies to patched releases.

How to confirm the fix worked

Confirm installed package versions meet or exceed 5.10.216-1 on Debian 11 systems and verify requirejs instances no longer accept untrusted configuration objects that modify prototypes.

Typical attack path

1. Locate a service using the vulnerable requirejs version
2. Craft and send a malicious object to the configure function
3. Trigger prototype pollution to modify core object behavior
4. Achieve arbitrary code execution or cause service denial

How to detect it

Review application and web server logs for anomalous configuration objects or repeated errors around requirejs context setup; inspect for unexpected prototype modifications in runtime environments.

What your security team should do

• Prioritize patching Debian 11 systems to the fixed kernel package version 5.10.216-1
• Audit application dependencies for requirejs usage and enforce version pinning
• Implement input validation around configuration functions in JavaScript runtimes
• Monitor EPSS and KEV updates for any change in exploitation likelihood