github - ghsa-mrv5-xm7c-h532

GHSA-MRV5-XM7C-H532

Vulnerability from github – Published: 2022-05-17 03:35 – Updated: 2022-05-17 03:35

Details

The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory.

Severity ?

8.4 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2016-4480"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-05-18T14:59:00Z",
    "severity": "HIGH"
  },
  "details": "The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory.",
  "id": "GHSA-mrv5-xm7c-h532",
  "modified": "2022-05-17T03:35:41Z",
  "published": "2022-05-17T03:35:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4480"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2016/dsa-3633"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/90710"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1035901"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-176.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2016-4480 (GCVE-0-2016-4480)

Vulnerability from cvelistv5 – Published: 2016-05-18 14:00 – Updated: 2024-08-06 00:32

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/90710	vdb-entryx_refsource_BID
	http://www.securitytracker.com/id/1035901	vdb-entryx_refsource_SECTRACK
	http://www.debian.org/security/2016/dsa-3633	vendor-advisoryx_refsource_DEBIAN
	http://xenbits.xen.org/xsa/advisory-176.html	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

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            "url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"
          },
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            "url": "http://www.securityfocus.com/bid/90710"
          },
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            "name": "1035901",
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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-MRV5-XM7C-H532

CVE-2016-4480 (GCVE-0-2016-4480)

Tags

Sightings

Nomenclature