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VULNERABILITIES

CVE-2022-35507 Details

Description

A response-header CRLF injection vulnerability in the Proxmox Virtual Environment (PVE) and Proxmox Mail Gateway (PMG) 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. This is fixed in pve-http-server 4.1-3.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
CNA: CISA-ADPCVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=936007ae0241811093155000486da171379c23c2 CVE
https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway/ CVEExploitPatchTechnical DescriptionThird Party Advisory
https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=936007ae0241811093155000486da171379c23c2 [email protected]
https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway/ [email protected]ExploitPatchTechnical DescriptionThird Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')[email protected]
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')CISA-ADP

Affected Products

ProductVersions
proxmox proxmox mail gateway
All versions

CPE

  • cpe:2.3:a:proxmox:proxmox_mail_gateway:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
proxmox pve http server
< 4.1-3

CPE

  • cpe:2.3:a:proxmox:pve_http_server:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
proxmox virtual environment
All versions

CPE

  • cpe:2.3:a:proxmox:virtual_environment:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-35507
NVD Published Date:
Dec 4, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2022-35507 Details - Not Deferred