github - ghsa-3635-87f7-gfgj

GHSA-3635-87F7-GFGJ

Vulnerability from github – Published: 2022-05-13 01:50 – Updated: 2022-05-13 01:50

Details

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.

Severity ?

8.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2018-19966"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-436"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-08T04:29:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.",
  "id": "GHSA-3635-87f7-gfgj",
  "modified": "2022-05-13T01:50:55Z",
  "published": "2022-05-13T01:50:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19966"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2019/dsa-4369"
    },
    {
      "type": "WEB",
      "url": "https://xenbits.xen.org/xsa/advisory-280.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/106182"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-19966 (GCVE-0-2018-19966)

Vulnerability from cvelistv5 – Published: 2018-12-08 04:00 – Updated: 2024-08-05 11:51

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://www.debian.org/security/2019/dsa-4369	vendor-advisoryx_refsource_DEBIAN
	https://xenbits.xen.org/xsa/advisory-280.html	x_refsource_MISC
	http://www.securityfocus.com/bid/106182	vdb-entryx_refsource_BID
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST

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          },
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            "url": "https://xenbits.xen.org/xsa/advisory-280.html"
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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-3635-87F7-GFGJ

CVE-2018-19966 (GCVE-0-2018-19966)

Tags

Sightings

Nomenclature