gsd-2021-3595
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
Aliases
Aliases
CVE-2021-3595


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-3595",
    "description": "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the \u0027tftp_t\u0027 structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.",
    "id": "GSD-2021-3595",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-3595.html",
      "https://access.redhat.com/errata/RHSA-2021:4191",
      "https://ubuntu.com/security/CVE-2021-3595",
      "https://advisories.mageia.org/CVE-2021-3595.html",
      "https://security.archlinux.org/CVE-2021-3595",
      "https://linux.oracle.com/cve/CVE-2021-3595.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3595"
      ],
      "details": "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the \u0027tftp_t\u0027 structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.",
      "id": "GSD-2021-3595",
      "modified": "2023-12-13T01:23:34.268726Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2021-3595",
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      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "QEMU",
                    "version": {
                      "version_data": [
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                          "version_value": "libslirp 4.6.0"
                        }
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              "vendor_name": "n/a"
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          }
        ]
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          {
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          },
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    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
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          {
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            "cpe_match": [
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          },
          {
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            "cpe_match": [
              {
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          },
          {
            "children": [],
            "cpe_match": [
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      },
      "cve": {
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          "ID": "CVE-2021-3595"
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        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": []
            }
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        },
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1970489"
            },
            {
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            },
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            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.8,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.0,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2023-03-15T00:15Z",
      "publishedDate": "2021-06-15T21:15Z"
    }
  }
}


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