Catálogo de CVE

CVE-2021-33197

UBUNTU-

[Catálogo de CVE]

In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.

Gravedad
Medium · CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published
Updated
Source
[NVD] · [CVE record]
EPSS
2.26% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
Ubuntuprogolang-1.161.16.2-0ubuntu1~20.04UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Ubuntuprogolang-1.161.16.2-0ubuntu1~20.04.1UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Ubuntuprogolang-1.161.16.2-0ubuntu1~20.04.1+esm1UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Ubuntu18.04golang-1.81.8.3-2ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Ubuntu18.04golang-1.81.8.3-2ubuntu1.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Debian11golang-1.151.15.9-5UnknownSource applicability is not established[DEBIAN-CVE-2021-33197]
Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Debian11golang-1.151.15.9-5UnknownSource applicability is not established[DEBIAN-CVE-2021-33197]
Ubuntu18.04golang-1.81.8.3-2ubuntu1UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Ubuntu18.04golang-1.81.8.3-2ubuntu1.18.04.1UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Ubuntuprogolang-1.161.16.2-0ubuntu1~20.04UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Ubuntuprogolang-1.161.16.2-0ubuntu1~20.04.1UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Ubuntuprogolang-1.161.16.2-0ubuntu1~20.04.1+esm1UnknownSource applicability is not established[UBUNTU-CVE-2021-33197]
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "golang-1.15",
      "distro": "debian",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.15.9-5"
            }
          ]
        }
      ],
      "release": "11",
      "versions": [],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-33197",
      "fixed_version": "1.15.9-5",
      "provider_source": "pypi",
      "provider_record_id": "DEBIAN-CVE-2021-33197",
      "provider_updated_at": "2026-08-27T23:04:03.316812948Z",
      "applicability_unknown": true
    },
    {
      "name": "golang-1.16",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "1.16.2-0ubuntu1~20.04",
        "1.16.2-0ubuntu1~20.04.1",
        "1.16.2-0ubuntu1~20.04.1+esm1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-33197",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-33197",
      "provider_updated_at": "2025-10-24T04:50:22Z",
      "applicability_unknown": true
    },
    {
      "name": "golang-1.8",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "1.8.3-2ubuntu1",
        "1.8.3-2ubuntu1.18.04.1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-33197",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-33197",
      "provider_updated_at": "2025-10-24T04:50:22Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

La asociación de paquetes está en curso.

Observado:

Referencias

[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]