usn-6480-1
Vulnerability from osv_ubuntu
Published
2023-11-15 14:51
Modified
2026-02-10 04:43
Summary
dotnet6, dotnet7, dotnet8 vulnerabilities
Details

Barry Dorrans discovered that .NET did not properly implement certain security features for Blazor server forms. An attacker could possibly use this issue to bypass validation, which could trigger unintended actions. (CVE-2023-36558)

Piotr Bazydlo discovered that .NET did not properly handle untrusted URIs provided to System.Net.WebRequest.Create. An attacker could possibly use this issue to inject arbitrary commands to backend FTP servers. (CVE-2023-36049)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-36049",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-36558",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "aspnetcore-runtime-6.0",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "aspnetcore-targeting-pack-6.0",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-apphost-pack-6.0",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-host",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-hostfxr-6.0",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-runtime-6.0",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-sdk-6.0",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-sdk-6.0-source-built-artifacts",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-targeting-pack-6.0",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-templates-6.0",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet6",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "netstandard-targeting-pack-2.1",
            "binary_version": "6.0.125-0ubuntu1~22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "dotnet6",
        "purl": "pkg:deb/ubuntu/dotnet6@6.0.125-0ubuntu1~22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.0.125-0ubuntu1~22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.0.108-0ubuntu1~22.04.1",
        "6.0.109-0ubuntu1~22.04.1",
        "6.0.110-0ubuntu1~22.04.1",
        "6.0.111-0ubuntu1~22.04.1",
        "6.0.113-0ubuntu1~22.04.1",
        "6.0.116-0ubuntu1~22.04.1",
        "6.0.118-0ubuntu1~22.04.1",
        "6.0.119-0ubuntu1~22.04.1",
        "6.0.120-0ubuntu1~22.04.1",
        "6.0.121-0ubuntu1~22.04.1",
        "6.0.122-0ubuntu1~22.04.1",
        "6.0.123-0ubuntu1~22.04.1",
        "6.0.124-0ubuntu1~22.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-36049",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-36558",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "aspnetcore-runtime-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "aspnetcore-targeting-pack-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-apphost-pack-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-host-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-hostfxr-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-runtime-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-sdk-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-sdk-7.0-source-built-artifacts",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-targeting-pack-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet-templates-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "dotnet7",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          },
          {
            "binary_name": "netstandard-targeting-pack-2.1-7.0",
            "binary_version": "7.0.114-0ubuntu1~22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "dotnet7",
        "purl": "pkg:deb/ubuntu/dotnet7@7.0.114-0ubuntu1~22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.114-0ubuntu1~22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.0.105-0ubuntu1~22.04.1",
        "7.0.107-0ubuntu1~22.04.1",
        "7.0.108-0ubuntu1~22.04.1",
        "7.0.109-0ubuntu1~22.04.1",
        "7.0.110-0ubuntu1~22.04.1",
        "7.0.111-0ubuntu1~22.04.1",
        "7.0.112-0ubuntu1~22.04.1",
        "7.0.113-0ubuntu1~22.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Barry Dorrans discovered that .NET did not properly implement certain\nsecurity features for Blazor server forms. An attacker could possibly\nuse this issue to bypass validation, which could trigger unintended\nactions. (CVE-2023-36558)\n\nPiotr Bazydlo discovered that .NET did not properly handle untrusted\nURIs provided to System.Net.WebRequest.Create. An attacker could possibly\nuse this issue to inject arbitrary commands to backend FTP servers.\n(CVE-2023-36049)\n",
  "id": "USN-6480-1",
  "modified": "2026-02-10T04:43:25Z",
  "published": "2023-11-15T14:51:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6480-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-36049"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-36558"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "dotnet6, dotnet7, dotnet8 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-36049",
    "UBUNTU-CVE-2023-36558"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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