msrc_cve-2022-0854
Vulnerability from csaf_microsoft
Published
2022-03-02 00:00
Modified
2022-03-31 00:00
Summary
A memory leak flaw was found in the Linux kernel’s DMA subsystem in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space.

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.


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{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2022-0854 A memory leak flaw was found in the Linux kernel\u2019s DMA subsystem in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space. - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-0854.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "A memory leak flaw was found in the Linux kernel\u2019s DMA subsystem in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space.",
    "tracking": {
      "current_release_date": "2022-03-31T00:00:00.000Z",
      "generator": {
        "date": "2025-10-19T23:23:33.118Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2022-0854",
      "initial_release_date": "2022-03-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2022-03-31T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "1.0",
                "product": {
                  "name": "CBL Mariner 1.0",
                  "product_id": "16820"
                }
              },
              {
                "category": "product_version",
                "name": "2.0",
                "product": {
                  "name": "CBL Mariner 2.0",
                  "product_id": "17086"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003ccm1 kernel 5.10.131.1-1",
                "product": {
                  "name": "\u003ccm1 kernel 5.10.131.1-1",
                  "product_id": "2"
                }
              },
              {
                "category": "product_version",
                "name": "cm1 kernel 5.10.131.1-1",
                "product": {
                  "name": "cm1 kernel 5.10.131.1-1",
                  "product_id": "18667"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003ccbl2 kernel 5.15.37.1-2",
                "product": {
                  "name": "\u003ccbl2 kernel 5.15.37.1-2",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "cbl2 kernel 5.15.37.1-2",
                "product": {
                  "name": "cbl2 kernel 5.15.37.1-2",
                  "product_id": "18720"
                }
              }
            ],
            "category": "product_name",
            "name": "kernel"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccm1 kernel 5.10.131.1-1 as a component of CBL Mariner 1.0",
          "product_id": "16820-2"
        },
        "product_reference": "2",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cm1 kernel 5.10.131.1-1 as a component of CBL Mariner 1.0",
          "product_id": "18667-16820"
        },
        "product_reference": "18667",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccbl2 kernel 5.15.37.1-2 as a component of CBL Mariner 2.0",
          "product_id": "17086-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17086"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cbl2 kernel 5.15.37.1-2 as a component of CBL Mariner 2.0",
          "product_id": "18720-17086"
        },
        "product_reference": "18720",
        "relates_to_product_reference": "17086"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-0854",
      "cwe": {
        "id": "CWE-401",
        "name": "Missing Release of Memory after Effective Lifetime"
      },
      "notes": [
        {
          "category": "general",
          "text": "redhat",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "18667-16820",
          "18720-17086"
        ],
        "known_affected": [
          "16820-2",
          "17086-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2022-0854 A memory leak flaw was found in the Linux kernel\u2019s DMA subsystem in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space. - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-0854.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-03-31T00:00:00.000Z",
          "details": "-:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "16820-2"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        },
        {
          "category": "vendor_fix",
          "date": "2022-03-31T00:00:00.000Z",
          "details": "5.15.37.1-2:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17086-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "temporalScore": 5.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "16820-2",
            "17086-1"
          ]
        }
      ],
      "title": "A memory leak flaw was found in the Linux kernel\u2019s DMA subsystem in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space."
    }
  ]
}


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