usn-7822-1
Vulnerability from osv_ubuntu
Published
2025-10-16 15:11
Modified
2026-04-27 14:11
Summary
dotnet8, dotnet9, dotnet10 vulnerabilities
Details

It was discovered that .NET did not properly handle the creation of temporary build time directories. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-55247)

It was discovered that .NET did not properly establish TLS sessions for SMTP server connections. An attacker could use this issue to cause .NET to use unencrypted connections. This issue only affects .NET versions 8.0 and 9.0. (CVE-2025-55248)

It was discovered that .NET inconsistently interpreted certain http requests. An attacker could possibly use this to bypass a security feature over a network. (CVE-2025-55315)

References
To clipboard 

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              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-55315",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "aspnetcore-runtime-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "aspnetcore-runtime-dbg-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "aspnetcore-targeting-pack-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-apphost-pack-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-host-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-hostfxr-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-runtime-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-runtime-dbg-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-sdk-9.0",
            "binary_version": "9.0.111-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-sdk-9.0-source-built-artifacts",
            "binary_version": "9.0.111-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-sdk-aot-9.0",
            "binary_version": "9.0.111-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-sdk-dbg-9.0",
            "binary_version": "9.0.111-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-targeting-pack-9.0",
            "binary_version": "9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet-templates-9.0",
            "binary_version": "9.0.111-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "dotnet9",
            "binary_version": "9.0.111-9.0.10-0ubuntu1~25.10.1"
          },
          {
            "binary_name": "netstandard-targeting-pack-2.1-9.0",
            "binary_version": "9.0.111-0ubuntu1~25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "dotnet9",
        "purl": "pkg:deb/ubuntu/dotnet9@9.0.111-9.0.10-0ubuntu1~25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.111-9.0.10-0ubuntu1~25.10.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.105-9.0.4-0ubuntu1",
        "9.0.106-9.0.5-0ubuntu1",
        "9.0.107-9.0.6-0ubuntu1",
        "9.0.108-9.0.7-0ubuntu1",
        "9.0.109-9.0.8-0ubuntu1",
        "9.0.110-9.0.9-0ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that .NET did not properly handle the creation of temporary\nbuild time directories. An attacker could possibly use this issue to cause a\ndenial of service. (CVE-2025-55247)\n\nIt was discovered that .NET did not properly establish TLS sessions for\nSMTP server connections. An attacker could use this issue to cause .NET\nto use unencrypted connections. This issue only affects .NET versions 8.0\nand 9.0. (CVE-2025-55248)\n\nIt was discovered that .NET inconsistently interpreted certain http\nrequests. An attacker could possibly use this to bypass a security feature\nover a network. (CVE-2025-55315)",
  "id": "USN-7822-1",
  "modified": "2026-04-27T14:11:46Z",
  "published": "2025-10-16T15:11:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7822-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-55247"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-55248"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-55315"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "dotnet8, dotnet9, dotnet10 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2025-55247",
    "UBUNTU-CVE-2025-55248",
    "UBUNTU-CVE-2025-55315"
  ]
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • 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.


Detection rules are retrieved from Rulezet.