gsd-2016-1922
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, 'current_cpu' remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.
Aliases
Aliases
CVE-2016-1922


To clipboard 

{
  "GSD": {
    "alias": "CVE-2016-1922",
    "description": "QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, \u0027current_cpu\u0027 remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.",
    "id": "GSD-2016-1922",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-1922.html",
      "https://www.debian.org/security/2016/dsa-3469",
      "https://www.debian.org/security/2016/dsa-3470",
      "https://www.debian.org/security/2016/dsa-3471",
      "https://ubuntu.com/security/CVE-2016-1922",
      "https://advisories.mageia.org/CVE-2016-1922.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-1922"
      ],
      "details": "QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, \u0027current_cpu\u0027 remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.",
      "id": "GSD-2016-1922",
      "modified": "2023-12-13T01:21:24.762496Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2016-1922",
        "STATE": "PUBLIC"
      },
      "affects": {
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          }
        ]
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          },
          {
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            "url": "https://security.gentoo.org/glsa/201604-01"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2016/01/16/1",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2016/01/16/1"
          },
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          },
          {
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            "url": "http://www.securityfocus.com/bid/81058"
          },
          {
            "name": "https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html",
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            "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html"
          },
          {
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1283934"
          }
        ]
      }
    },
    "nvd.nist.gov": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "2.5.1.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
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              },
              {
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            ],
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        ]
      },
      "cve": {
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          "ID": "CVE-2016-1922"
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        "description": {
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            }
          ]
        },
        "problemtype": {
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                {
                  "lang": "en",
                  "value": "CWE-476"
                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "[qemu-devel] 20160115 [PULL] i386: avoid null pointer dereference",
              "refsource": "MLIST",
              "tags": [
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              "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1283934",
              "refsource": "CONFIRM",
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1283934"
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              "name": "81058",
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            },
            {
              "name": "[oss-security] 20160116 Re: CVE request Qemu: i386: null pointer dereference in vapic_write",
              "refsource": "MLIST",
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              ],
              "url": "http://www.openwall.com/lists/oss-security/2016/01/16/6"
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            {
              "name": "[oss-security] 20160116 CVE request Qemu: i386: null pointer dereference in vapic_write",
              "refsource": "MLIST",
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              ],
              "url": "http://www.openwall.com/lists/oss-security/2016/01/16/1"
            },
            {
              "name": "GLSA-201604-01",
              "refsource": "GENTOO",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/201604-01"
            },
            {
              "name": "DSA-3471",
              "refsource": "DEBIAN",
              "tags": [
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              "url": "http://www.debian.org/security/2016/dsa-3471"
            },
            {
              "name": "DSA-3470",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.debian.org/security/2016/dsa-3470"
            },
            {
              "name": "DSA-3469",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.debian.org/security/2016/dsa-3469"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "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": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2020-11-10T18:46Z",
      "publishedDate": "2016-12-29T22:59Z"
    }
  }
}


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