CVE-2016-7907 (GCVE-0-2016-7907)

Vulnerability from cvelistv5 – Published: 2016-10-05 16:00 – Updated: 2024-08-06 02:13
VLAI
Summary
The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 81/100 over 995 records in the last 180 days details
References
URL Tags
http://www.openwall.com/lists/oss-security/2016/10/03/1 mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/201611-11 vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-updates/2016-1… vendor-advisoryx_refsource_SUSE
https://lists.gnu.org/archive/html/qemu-devel/201… mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/93274 vdb-entryx_refsource_BID
http://www.openwall.com/lists/oss-security/2016/10/03/4 mailing-listx_refsource_MLIST
Date Public
2016-09-22 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T02:13:20.926Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20161003 CVE request Qemu: net: inifinte loop in imx_fec_do_tx() function",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/10/03/1"
          },
          {
            "name": "GLSA-201611-11",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201611-11"
          },
          {
            "name": "openSUSE-SU-2016:3237",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html"
          },
          {
            "name": "[qemu-devel] 20160922 [PATCH v2] net: imx: limit buffer descriptor count",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html"
          },
          {
            "name": "93274",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/93274"
          },
          {
            "name": "[oss-security] 20161003 Re: CVE request Qemu: net: inifinte loop in imx_fec_do_tx() function",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/10/03/4"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-09-22T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-06-30T16:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "[oss-security] 20161003 CVE request Qemu: net: inifinte loop in imx_fec_do_tx() function",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/10/03/1"
        },
        {
          "name": "GLSA-201611-11",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201611-11"
        },
        {
          "name": "openSUSE-SU-2016:3237",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html"
        },
        {
          "name": "[qemu-devel] 20160922 [PATCH v2] net: imx: limit buffer descriptor count",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html"
        },
        {
          "name": "93274",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/93274"
        },
        {
          "name": "[oss-security] 20161003 Re: CVE request Qemu: net: inifinte loop in imx_fec_do_tx() function",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/10/03/4"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-7907",
    "datePublished": "2016-10-05T16:00:00.000Z",
    "dateReserved": "2016-09-09T00:00:00.000Z",
    "dateUpdated": "2024-08-06T02:13:20.926Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2016-7907",
      "date": "2026-10-14",
      "epss": "0.00409",
      "percentile": "0.33507"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A965C2D1-C447-4324-95A4-27285ECF8909",
                    "versionEndIncluding": "2.8.1.1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:*",
                    "matchCriteriaId": "9F615830-8EC7-41C0-9A77-6C7D4E718429",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "15D5C1F9-C3B4-4733-8782-0E54AE543C16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "286D3DE9-9796-42AE-88E1-F6E04BF8B449",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "B54248FC-FD5C-445E-BD8F-886D9D8736D6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "89FB8D92-4A3A-4B52-93B0-6F809D313C40",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:qemu:qemu:2.9.0:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "06A8F83F-3551-4F3B-A0C9-EE6B8BA5436A",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags."
          },
          {
            "lang": "es",
            "value": "La funci\u00f3n imx_fec_do_tx function in hw/net/imx_fec.c en QEMU (tambi\u00e9n conocido como Quick Emulator) no limita adecuadamente el recuento del descriptor de b\u00fafer cuando trasmite paquetes, lo que permite a administradores locales del SO invitado provocar una denegaci\u00f3n de servicio (bucle infinito y ca\u00edda del proceso QEMU) a trav\u00e9s de vectores relacionados con un descriptor de b\u00fafer con una longitud de 0 y valores manipulados en bd.flags."
          }
        ],
        "id": "CVE-2016-7907",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "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,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 4.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 0.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-10-05T16:59:10.070",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/10/03/1"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/10/03/4"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/93274"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/201611-11"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/10/03/1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/10/03/4"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/93274"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/201611-11"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              },
              {
                "lang": "en",
                "value": "CWE-399"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T11:58:46+00:00",
      "cve": "CVE-2016-7907",
      "id": "CVE-2016-7907",
      "initial_release_date": "2016-09-21T00:00:00+00:00",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "34",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Qemu: net: inifinte loop in imx_fec_do_tx() function",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-7907.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.