github - ghsa-9xrv-h87m-r2vc

ghsa-9xrv-h87m-r2vc

Vulnerability from github

Published

2022-05-14 02:00

Modified

2022-05-14 02:00

Severity ?

6.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Details

An issue was discovered in Xen through 4.11.x. The logic in oxenstored for handling writes depended on the order of evaluation of expressions making up a tuple. As indicated in section 7.7.3 "Operations on data structures" of the OCaml manual, the order of evaluation of subexpressions is not specified. In practice, different implementations behave differently. Thus, oxenstored may not enforce the configured quota-maxentity. This allows a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-15470"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-08-17T18:29:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Xen through 4.11.x. The logic in oxenstored for handling writes depended on the order of evaluation of expressions making up a tuple. As indicated in section 7.7.3 \"Operations on data structures\" of the OCaml manual, the order of evaluation of subexpressions is not specified. In practice, different implementations behave differently. Thus, oxenstored may not enforce the configured quota-maxentity. This allows a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS.",
  "id": "GHSA-9xrv-h87m-r2vc",
  "modified": "2022-05-14T02:00:01Z",
  "published": "2022-05-14T02:00:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15470"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201810-06"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-272.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2018-15470

Vulnerability from cvelistv5

Published

2018-08-17 17:00

Modified

2024-08-05 09:54

Severity ?

Summary

References

▼	URL	Tags
	https://security.gentoo.org/glsa/201810-06	vendor-advisory, x_refsource_GENTOO
	https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html	mailing-list, x_refsource_MLIST
	http://xenbits.xen.org/xsa/advisory-272.html	x_refsource_MISC

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

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  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-05T09:54:03.606Z",
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          "shortName": "CVE"
        },
        "references": [
          {
            "name": "GLSA-201810-06",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201810-06"
          },
          {
            "name": "[debian-lts-announce] 20181112 [SECURITY] [DLA 1577-1] xen security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://xenbits.xen.org/xsa/advisory-272.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
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              "version": "n/a"
            }
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      ],
      "datePublic": "2018-08-17T00:00:00",
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
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              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-11-13T10:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "GLSA-201810-06",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201810-06"
        },
        {
          "name": "[debian-lts-announce] 20181112 [SECURITY] [DLA 1577-1] xen security update",
          "tags": [
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          "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://xenbits.xen.org/xsa/advisory-272.html"
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      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-15470",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
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                },
                "vendor_name": "n/a"
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        "problemtype": {
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        "references": {
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            },
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              "url": "http://xenbits.xen.org/xsa/advisory-272.html"
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      }
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  },
  "cveMetadata": {
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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