CVE-2022-35507

Name of the Vulnerable Software and Affected Versions Proxmox Virtual Environment versions prior to pve-http-server 4.1-3 Proxmox Mail Gateway versions prior to pve-http-server 4.1-3

Description A response-header CRLF injection vulnerability in the web interface allows a remote attacker to set cookies for a victim's browser that are longer than the server expects, causing a client-side DoS. This affects Chromium-based browsers because they allow injection of response headers with %0d.

Recommendations For Proxmox Virtual Environment versions prior to pve-http-server 4.1-3, update to pve-http-server 4.1-3 to resolve the issue. For Proxmox Mail Gateway versions prior to pve-http-server 4.1-3, update to pve-http-server 4.1-3 to resolve the issue. As a temporary workaround, consider restricting access to the web interface until a patch is available.