github - ghsa-g669-vf33-57jw

GHSA-G669-VF33-57JW

Vulnerability from github – Published: 2022-05-14 02:00 – Updated: 2022-05-14 02:00

Details

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

Severity ?

6.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2018-7540"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-02-27T19:29:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.",
  "id": "GHSA-g669-vf33-57jw",
  "modified": "2022-05-14T02:00:01Z",
  "published": "2022-05-14T02:00:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-7540"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html"
    },
    {
      "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": "https://support.citrix.com/article/CTX232096"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/article/CTX232655"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4131"
    },
    {
      "type": "WEB",
      "url": "https://xenbits.xen.org/xsa/advisory-252.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/103174"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1040773"
    }
  ],
  "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-2018-7540 (GCVE-0-2018-7540)

Vulnerability from cvelistv5 – Published: 2018-02-27 19:00 – Updated: 2024-08-05 06:31

Summary

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://xenbits.xen.org/xsa/advisory-252.html	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/201810-06	vendor-advisoryx_refsource_GENTOO
	http://www.securitytracker.com/id/1040773	vdb-entryx_refsource_SECTRACK
	https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
	http://www.securityfocus.com/bid/103174	vdb-entryx_refsource_BID
	https://www.debian.org/security/2018/dsa-4131	vendor-advisoryx_refsource_DEBIAN
	https://support.citrix.com/article/CTX232655	x_refsource_CONFIRM
	https://support.citrix.com/article/CTX232096	x_refsource_CONFIRM

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JSON

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            "url": "https://xenbits.xen.org/xsa/advisory-252.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.

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GHSA-G669-VF33-57JW

CVE-2018-7540 (GCVE-0-2018-7540)

Tags

Sightings

Nomenclature