github - ghsa-cr4c-368c-2fc2

GHSA-CR4C-368C-2FC2

Vulnerability from github – Published: 2022-05-17 02:37 – Updated: 2022-05-17 02:37

Details

Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it.

Severity ?

6.3 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2016-7777"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-10-07T14:59:00Z",
    "severity": "MODERATE"
  },
  "details": "Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it.",
  "id": "GHSA-cr4c-368c-2fc2",
  "modified": "2022-05-17T02:37:04Z",
  "published": "2022-05-17T02:37:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-7777"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201611-09"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/article/CTX217363"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/93344"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1036942"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-190.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2016-7777 (GCVE-0-2016-7777)

Vulnerability from cvelistv5 – Published: 2016-10-07 14:00 – Updated: 2024-08-06 02:04

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://support.citrix.com/article/CTX217363	x_refsource_CONFIRM
	http://xenbits.xen.org/xsa/advisory-190.html	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/93344	vdb-entryx_refsource_BID
	https://security.gentoo.org/glsa/201611-09	vendor-advisoryx_refsource_GENTOO
	http://www.securitytracker.com/id/1036942	vdb-entryx_refsource_SECTRACK

Show details on NVD website

JSON

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          "dateUpdated": "2024-08-06T02:04:55.996Z",
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        "references": [
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            "tags": [
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            ],
            "url": "https://support.citrix.com/article/CTX217363"
          },
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "http://xenbits.xen.org/xsa/advisory-190.html"
          },
          {
            "name": "93344",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/93344"
          },
          {
            "name": "GLSA-201611-09",
            "tags": [
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              "x_refsource_GENTOO",
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            "url": "https://security.gentoo.org/glsa/201611-09"
          },
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      }
    ],
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        }
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      "providerMetadata": {
        "dateUpdated": "2017-06-30T16:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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          ],
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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-CR4C-368C-2FC2

CVE-2016-7777 (GCVE-0-2016-7777)

Tags

Sightings

Nomenclature