github - ghsa-c6pm-8crm-3rr8

ghsa-c6pm-8crm-3rr8

Vulnerability from github

Published

2022-05-17 00:24

Modified

2022-05-17 00:24

Severity ?

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

Details

Xen maintains the GTF{read,writ}ing bits as appropriate, to inform the guest that a grant is in use. A guest is expected not to modify the grant details while it is in use, whereas the guest is free to modify/reuse the grant entry when it is not in use. Under some circumstances, Xen will clear the status bits too early, incorrectly informing the guest that the grant is no longer in use. A guest may prematurely believe that a granted frame is safely private again, and reuse it in a way which contains sensitive information, while the domain on the far end of the grant is still using the grant. Xen 4.9, 4.8, 4.7, 4.6, and 4.5 are affected.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2017-12855"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-08-15T16:29:00Z",
    "severity": "MODERATE"
  },
  "details": "Xen maintains the _GTF_{read,writ}ing bits as appropriate, to inform the guest that a grant is in use. A guest is expected not to modify the grant details while it is in use, whereas the guest is free to modify/reuse the grant entry when it is not in use. Under some circumstances, Xen will clear the status bits too early, incorrectly informing the guest that the grant is no longer in use. A guest may prematurely believe that a granted frame is safely private again, and reuse it in a way which contains sensitive information, while the domain on the far end of the grant is still using the grant. Xen 4.9, 4.8, 4.7, 4.6, and 4.5 are affected.",
  "id": "GHSA-c6pm-8crm-3rr8",
  "modified": "2022-05-17T00:24:10Z",
  "published": "2022-05-17T00:24:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12855"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/article/CTX225941"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3969"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/100341"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1039177"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-230.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2017-12855

Vulnerability from cvelistv5

Published

2017-08-15 16:00

Modified

2024-08-05 18:51

Severity ?

Summary

Xen maintains the _GTF_{read,writ}ing bits as appropriate, to inform the guest that a grant is in use. A guest is expected not to modify the grant details while it is in use, whereas the guest is free to modify/reuse the grant entry when it is not in use. Under some circumstances, Xen will clear the status bits too early, incorrectly informing the guest that the grant is no longer in use. A guest may prematurely believe that a granted frame is safely private again, and reuse it in a way which contains sensitive information, while the domain on the far end of the grant is still using the grant. Xen 4.9, 4.8, 4.7, 4.6, and 4.5 are affected.

References

▼	URL	Tags
	https://support.citrix.com/article/CTX225941	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1039177	vdb-entry, x_refsource_SECTRACK
	http://www.securityfocus.com/bid/100341	vdb-entry, x_refsource_BID
	http://www.debian.org/security/2017/dsa-3969	vendor-advisory, x_refsource_DEBIAN
	http://xenbits.xen.org/xsa/advisory-230.html	x_refsource_CONFIRM

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

{
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        "providerMetadata": {
          "dateUpdated": "2024-08-05T18:51:06.836Z",
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        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.citrix.com/article/CTX225941"
          },
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            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1039177"
          },
          {
            "name": "100341",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/100341"
          },
          {
            "name": "DSA-3969",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2017/dsa-3969"
          },
          {
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              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://xenbits.xen.org/xsa/advisory-230.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
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        }
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      "datePublic": "2017-08-15T00:00:00",
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2017-11-14T10:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
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          "url": "https://support.citrix.com/article/CTX225941"
        },
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          "name": "1039177",
          "tags": [
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          ],
          "url": "http://www.securitytracker.com/id/1039177"
        },
        {
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          "tags": [
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          ],
          "url": "http://www.securityfocus.com/bid/100341"
        },
        {
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        },
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          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://xenbits.xen.org/xsa/advisory-230.html"
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      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-12855",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
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                      }
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                "vendor_name": "n/a"
              }
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        "data_format": "MITRE",
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            },
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            },
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              "url": "http://www.securityfocus.com/bid/100341"
            },
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              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2017/dsa-3969"
            },
            {
              "name": "http://xenbits.xen.org/xsa/advisory-230.html",
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              "url": "http://xenbits.xen.org/xsa/advisory-230.html"
            }
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-12855",
    "datePublished": "2017-08-15T16:00:00",
    "dateReserved": "2017-08-15T00:00:00",
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  },
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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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