GSD-2021-20203

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
Aliases
Aliases
CVE-2021-20203
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-20203",
    "description": "An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.",
    "id": "GSD-2021-20203",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-20203.html",
      "https://ubuntu.com/security/CVE-2021-20203",
      "https://security.archlinux.org/CVE-2021-20203",
      "https://linux.oracle.com/cve/CVE-2021-20203.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-20203"
      ],
      "details": "An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.",
      "id": "GSD-2021-20203",
      "modified": "2023-12-13T01:23:11.863604Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2021-20203",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "qemu",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "versions up to v5.2.0"
                        }
                      ]
                    }
                  }
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              "vendor_name": "n/a"
            }
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          }
        ]
      },
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            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1922441",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922441"
          },
          {
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            "refsource": "MISC",
            "url": "https://bugs.launchpad.net/qemu/+bug/1913873"
          },
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            "name": "https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html",
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            "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html"
          },
          {
            "name": "https://security.gentoo.org/glsa/202208-27",
            "refsource": "MISC",
            "url": "https://security.gentoo.org/glsa/202208-27"
          },
          {
            "name": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html",
            "refsource": "MISC",
            "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "5.2.0",
                "vulnerable": true
              }
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            "operator": "OR"
          },
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            "children": [],
            "cpe_match": [
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                "vulnerable": true
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          }
        ]
      },
      "cve": {
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          "ID": "CVE-2021-20203"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            {
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              "value": "An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario."
            }
          ]
        },
        "problemtype": {
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            {
              "description": [
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        "references": {
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            },
            {
              "name": "https://bugs.launchpad.net/qemu/+bug/1913873",
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              "tags": [
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                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://bugs.launchpad.net/qemu/+bug/1913873"
            },
            {
              "name": "[debian-lts-announce] 20210410 [SECURITY] [DLA 2623-1] qemu security update",
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            },
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              "refsource": "MLIST",
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            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 2.1,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
            "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": "LOW",
            "baseScore": 3.2,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.5,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-09-30T19:32Z",
      "publishedDate": "2021-02-25T20:15Z"
    }
  }
}



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