USN-6365-2 (UBUNTU-CVE-2023-20900)

Vulnerability from osv_ubuntu – Published: 2023-09-25 10:55 – Updated: 2026-06-25 10:46 – Source website
VLAI
Summary
open-vm-tools vulnerability
Details

USN-6365-1 fixed a vulnerability in Open VM Tools. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that Open VM Tools incorrectly handled SAML tokens. A remote attacker could possibly use this issue to bypass SAML token signature verification and perform VMware Tools Guest Operations.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-20900",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "open-vm-tools",
            "binary_version": "2:10.2.0-3~ubuntu0.16.04.1+esm3"
          },
          {
            "binary_name": "open-vm-tools-desktop",
            "binary_version": "2:10.2.0-3~ubuntu0.16.04.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "open-vm-tools",
        "purl": "pkg:deb/ubuntu/open-vm-tools@2:10.2.0-3~ubuntu0.16.04.1+esm3?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:10.2.0-3~ubuntu0.16.04.1+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:9.10.2-2822639-1ubuntu3",
        "2:10.0.0-3000743-3ubuntu1",
        "2:10.0.7-3227872-2ubuntu1",
        "2:10.0.7-3227872-5ubuntu1~16.04.1",
        "2:10.0.7-3227872-5ubuntu1~16.04.2",
        "2:10.2.0-3~ubuntu0.16.04.1",
        "2:10.2.0-3~ubuntu0.16.04.1+esm1",
        "2:10.2.0-3~ubuntu0.16.04.1+esm2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-20900",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "open-vm-tools",
            "binary_version": "2:11.0.5-4ubuntu0.18.04.3+esm2"
          },
          {
            "binary_name": "open-vm-tools-desktop",
            "binary_version": "2:11.0.5-4ubuntu0.18.04.3+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "open-vm-tools",
        "purl": "pkg:deb/ubuntu/open-vm-tools@2:11.0.5-4ubuntu0.18.04.3+esm2?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:11.0.5-4ubuntu0.18.04.3+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:10.1.10-3",
        "2:10.1.10-3build1",
        "2:10.1.15-1",
        "2:10.1.15-1build1",
        "2:10.2.0-2",
        "2:10.2.0-2build1",
        "2:10.2.0-3",
        "2:10.2.0-3ubuntu1",
        "2:10.2.0-3ubuntu2",
        "2:10.2.0-3ubuntu3",
        "2:10.3.0-0ubuntu1~18.04.1",
        "2:10.3.0-0ubuntu1~18.04.2",
        "2:10.3.0-0ubuntu1~18.04.3",
        "2:10.3.5-7~ubuntu0.18.04.1",
        "2:10.3.10-1~ubuntu0.18.04.1",
        "2:11.0.1-2ubuntu0.18.04.2",
        "2:11.0.5-4ubuntu0.18.04.1",
        "2:11.0.5-4ubuntu0.18.04.2",
        "2:11.0.5-4ubuntu0.18.04.3",
        "2:11.0.5-4ubuntu0.18.04.3+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-6365-1 fixed a vulnerability in Open VM Tools. This update provides\nthe corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that Open VM Tools incorrectly handled SAML tokens. A\n remote attacker could possibly use this issue to bypass SAML token\n signature verification and perform VMware Tools Guest Operations.\n",
  "id": "USN-6365-2",
  "modified": "2026-06-25T10:46:16Z",
  "published": "2023-09-25T10:55:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6365-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-20900"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "open-vm-tools vulnerability",
  "upstream": [
    "UBUNTU-CVE-2023-20900"
  ]
}



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