usn-7561-1
Vulnerability from osv_ubuntu
Published
2025-06-09 13:38
Modified
2026-02-10 04:48
Summary
amd64-microcode vulnerabilities
Details

It was discovered that AMD Microcode incorrectly handled memory addresses. An attacker with local administrator privilege could possibly use this issue to cause loss of integrity of a confidential guest running under AMD SEV-SNP. (CVE-2023-20584, CVE-2023-31356)

Josh Eads, Kristoffer Janke, Eduardo Nava, Tavis Ormandy and Matteo Rizzo discovered that AMD Microcode incorrectly verified signatures. An attacker with local administrator privilege could possibly use this issue to cause loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP. (CVE-2024-56161)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-20584",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-31356",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-56161",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "amd64-microcode",
            "binary_version": "3.20250311.1ubuntu0.24.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "amd64-microcode",
        "purl": "pkg:deb/ubuntu/amd64-microcode@3.20250311.1ubuntu0.24.04.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.20250311.1ubuntu0.24.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.20230808.1.1ubuntu1",
        "3.20231019.1ubuntu1",
        "3.20231019.1ubuntu2",
        "3.20231019.1ubuntu2.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that AMD Microcode incorrectly handled memory addresses.\nAn attacker with local administrator privilege could possibly use this\nissue to cause loss of integrity of a confidential guest running under AMD\nSEV-SNP. (CVE-2023-20584, CVE-2023-31356)\n\nJosh Eads, Kristoffer Janke, Eduardo Nava, Tavis Ormandy and Matteo Rizzo\ndiscovered that AMD Microcode incorrectly verified signatures. An attacker\nwith local administrator privilege could possibly use this issue to cause\nloss of confidentiality and integrity of a confidential guest running under\nAMD SEV-SNP. (CVE-2024-56161)",
  "id": "USN-7561-1",
  "modified": "2026-02-10T04:48:59Z",
  "published": "2025-06-09T13:38:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7561-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-20584"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-31356"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-56161"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "amd64-microcode vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-20584",
    "UBUNTU-CVE-2023-31356",
    "UBUNTU-CVE-2024-56161"
  ]
}



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