github - ghsa-hpq2-2fmq-c95r

GHSA-HPQ2-2FMQ-C95R

Vulnerability from github – Published: 2022-05-13 01:31 – Updated: 2022-05-13 01:31

Details

One of the data structures that holds TCP segments in all versions of FreeBSD prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, and 10.4-RELEASE-p10 uses an inefficient algorithm to reassemble the data. This causes the CPU time spent on segment processing to grow linearly with the number of segments in the reassembly queue. An attacker who has the ability to send TCP traffic to a victim system can degrade the victim system's network performance and/or consume excessive CPU by exploiting the inefficiency of TCP reassembly handling, with relatively small bandwidth cost.

Severity ?

5.3 (Medium)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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{
  "affected": [],
  "aliases": [
    "CVE-2018-6922"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-08-09T18:29:00Z",
    "severity": "MODERATE"
  },
  "details": "One of the data structures that holds TCP segments in all versions of FreeBSD prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, and 10.4-RELEASE-p10 uses an inefficient algorithm to reassemble the data. This causes the CPU time spent on segment processing to grow linearly with the number of segments in the reassembly queue. An attacker who has the ability to send TCP traffic to a victim system can degrade the victim system\u0027s network performance and/or consume excessive CPU by exploiting the inefficiency of TCP reassembly handling, with relatively small bandwidth cost.",
  "id": "GHSA-hpq2-2fmq-c95r",
  "modified": "2022-05-13T01:31:55Z",
  "published": "2022-05-13T01:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6922"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20180815-0002"
    },
    {
      "type": "WEB",
      "url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-18:08.tcp.asc"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/105058"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1041425"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-6922 (GCVE-0-2018-6922)

Vulnerability from cvelistv5 – Published: 2018-08-09 18:00 – Updated: 2024-09-16 17:53

Summary

Severity ?

No CVSS data available.

CWE

CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')

Assigner

freebsd

References

URL

Tags

	https://www.freebsd.org/security/advisories/FreeB…	vendor-advisoryx_refsource_FREEBSD
	http://www.securitytracker.com/id/1041425	vdb-entryx_refsource_SECTRACK
	https://www.oracle.com/technetwork/security-advis…	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/105058	vdb-entryx_refsource_BID
	https://security.netapp.com/advisory/ntap-2018081…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	FreeBSD	FreeBSD	Affected: All versions prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, 10.4-RELEASE-p10

Show details on NVD website

JSON

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        "providerMetadata": {
          "dateUpdated": "2024-08-05T06:17:17.137Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "FreeBSD-SA-18:08",
            "tags": [
              "vendor-advisory",
              "x_refsource_FREEBSD",
              "x_transferred"
            ],
            "url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-18:08.tcp.asc"
          },
          {
            "name": "1041425",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1041425"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
          },
          {
            "name": "105058",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/105058"
          },
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180815-0002/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FreeBSD",
          "vendor": "FreeBSD",
          "versions": [
            {
              "status": "affected",
              "version": "All versions prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, 10.4-RELEASE-p10"
            }
          ]
        }
      ],
      "datePublic": "2018-08-08T00:00:00",
      "descriptions": [
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          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2019-01-16T18:57:01",
        "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
        "shortName": "freebsd"
      },
      "references": [
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          "name": "FreeBSD-SA-18:08",
          "tags": [
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          ],
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        },
        {
          "name": "1041425",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1041425"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
        },
        {
          "name": "105058",
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        },
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          "tags": [
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          ],
          "url": "https://security.netapp.com/advisory/ntap-20180815-0002/"
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      "x_legacyV4Record": {
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          "ID": "CVE-2018-6922",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "FreeBSD",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, 10.4-RELEASE-p10"
                          }
                        ]
                      }
                    }
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                },
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        "data_format": "MITRE",
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        "description": {
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            }
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        },
        "problemtype": {
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              "refsource": "FREEBSD",
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            },
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              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1041425"
            },
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              "refsource": "CONFIRM",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
            },
            {
              "name": "105058",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/105058"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20180815-0002/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20180815-0002/"
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  },
  "cveMetadata": {
    "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
    "assignerShortName": "freebsd",
    "cveId": "CVE-2018-6922",
    "datePublished": "2018-08-09T18:00:00Z",
    "dateReserved": "2018-02-12T00:00:00",
    "dateUpdated": "2024-09-16T17:53:10.816Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-HPQ2-2FMQ-C95R

CVE-2018-6922 (GCVE-0-2018-6922)

Tags

Sightings

Nomenclature