github - ghsa-rqmv-893j-49p8

GHSA-RQMV-893J-49P8

Vulnerability from github – Published: 2022-05-24 17:36 – Updated: 2022-05-24 17:36

Details

An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-29570"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-12-15T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.",
  "id": "GHSA-rqmv-893j-49p8",
  "modified": "2022-05-24T17:36:35Z",
  "published": "2022-05-24T17:36:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-29570"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202107-30"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4812"
    },
    {
      "type": "WEB",
      "url": "https://xenbits.xenproject.org/xsa/advisory-358.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2020/12/16/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-29570 (GCVE-0-2020-29570)

Vulnerability from cvelistv5 – Published: 2020-12-15 17:01 – Updated: 2024-08-04 16:55

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://xenbits.xenproject.org/xsa/advisory-358.html	x_refsource_MISC
	https://www.debian.org/security/2020/dsa-4812	vendor-advisoryx_refsource_DEBIAN
	http://www.openwall.com/lists/oss-security/2020/12/16/4	mailing-listx_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://security.gentoo.org/glsa/202107-30	vendor-advisoryx_refsource_GENTOO

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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-RQMV-893J-49P8

CVE-2020-29570 (GCVE-0-2020-29570)

Tags

Sightings

Nomenclature