CVE-2018-11806 (GCVE-0-2018-11806)

Vulnerability from cvelistv5 – Published: 2018-06-13 16:00 – Updated: 2024-08-05 08:17
VLAI
Summary
m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
Severity
8.2 (High)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2018:2762 vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/104400 vdb-entryx_refsource_BID
https://usn.ubuntu.com/3826-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.gnu.org/archive/html/qemu-devel/201… mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2018/06/07/1 mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=1586245 x_refsource_CONFIRM
https://www.zerodayinitiative.com/advisories/ZDI-… x_refsource_MISC
https://access.redhat.com/errata/RHSA-2018:2462 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:2822 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2018:2887 vendor-advisoryx_refsource_REDHAT
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://www.debian.org/security/2019/dsa-4454 vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/May/76 mailing-listx_refsource_BUGTRAQ
https://access.redhat.com/errata/RHSA-2019:2892 vendor-advisoryx_refsource_REDHAT
Date Public
2018-06-05 00:00
Show details on NVD website
To clipboard 

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                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams."
          },
          {
            "lang": "es",
            "value": "m_cat en slirp/mbuf.c en Qemu tiene un desbordamiento de b\u00fafer basado en memoria din\u00e1mica (heap) mediante los datagramas entrantes fragmentados."
          }
        ],
        "id": "CVE-2018-11806",
        "lastModified": "2026-06-17T01:36:38.410",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 7.2,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 10.0,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
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              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 8.2,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.5,
              "impactScore": 6.0,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2018-06-13T16:29:01.483",
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        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-28T11:13:39+00:00",
      "cve": "CVE-2018-11806",
      "id": "CVE-2018-11806",
      "initial_release_date": "2018-06-05T00:00:00+00:00",
      "product_status:fixed": "141",
      "product_status:known_affected": "9",
      "product_status:known_not_affected": "17",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-11806.json",
      "version": "3"
    }
  }
}



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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.



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.