msrc_cve-2022-0563
Vulnerability from csaf_microsoft
Published
2022-02-02 00:00
Modified
2022-03-08 00:00
Summary
A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an "INPUTRC" environment variable to get a path to the library config file. When the library cannot parse the specified file it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4.

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/"
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    "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-2022-0563 A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an \"INPUTRC\" environment variable to get a path to the library config file. When the library cannot parse the specified file it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4. - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-0563.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 flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an \"INPUTRC\" environment variable to get a path to the library config file. When the library cannot parse the specified file it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4.",
    "tracking": {
      "current_release_date": "2022-03-08T00:00:00.000Z",
      "generator": {
        "date": "2025-10-19T23:18:12.195Z",
        "engine": {
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        }
      },
      "id": "msrc_CVE-2022-0563",
      "initial_release_date": "2022-02-02T00:00:00.000Z",
      "revision_history": [
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          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
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    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
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            "branches": [
              {
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                "product": {
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              },
              {
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            ],
            "category": "product_name",
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          },
          {
            "branches": [
              {
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                "name": "\u003ccm1 util-linux 2.32.1-7",
                "product": {
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              },
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              {
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              },
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            ],
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        ],
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      }
    ],
    "relationships": [
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      },
      {
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-0563",
      "cwe": {
        "id": "CWE-209",
        "name": "Generation of Error Message Containing Sensitive Information"
      },
      "notes": [
        {
          "category": "general",
          "text": "redhat",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
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        ],
        "known_affected": [
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          "17086-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2022-0563 A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an \"INPUTRC\" environment variable to get a path to the library config file. When the library cannot parse the specified file it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4. - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-0563.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-03-08T00:00:00.000Z",
          "details": "2.32.1-7:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
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        },
        {
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          "date": "2022-03-08T00:00:00.000Z",
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          ],
          "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 flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an \"INPUTRC\" environment variable to get a path to the library config file. When the library cannot parse the specified file it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4."
    }
  ]
}


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