github - ghsa-h398-v6mj-crpf

ghsa-h398-v6mj-crpf

Vulnerability from github

Published

2022-05-24 17:03

Modified

2022-05-24 17:03

Details

An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service (out-of-bounds access) because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which may misbehave in certain corner cases: On 32-bit Arm accesses to bitmaps with bit a count which is a multiple of 32, an out of bounds access may occur. A malicious guest may cause a hypervisor crash or hang, resulting in a Denial of Service (DoS). All versions of Xen are vulnerable. 32-bit Arm systems are vulnerable. 64-bit Arm systems are not vulnerable.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-19581"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-12-11T18:16:00Z",
    "severity": "LOW"
  },
  "details": "An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service (out-of-bounds access) because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which may misbehave in certain corner cases: On 32-bit Arm accesses to bitmaps with bit a count which is a multiple of 32, an out of bounds access may occur. A malicious guest may cause a hypervisor crash or hang, resulting in a Denial of Service (DoS). All versions of Xen are vulnerable. 32-bit Arm systems are vulnerable. 64-bit Arm systems are not vulnerable.",
  "id": "GHSA-h398-v6mj-crpf",
  "modified": "2022-05-24T17:03:15Z",
  "published": "2022-05-24T17:03:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19581"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43"
    },
    {
      "type": "WEB",
      "url": "https://xenbits.xen.org/xsa/advisory-307.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2019-19581

Vulnerability from cvelistv5

Published

2019-12-11 16:50

Modified

2024-08-05 02:16

Severity ?

Summary

References

▼	URL	Tags
	https://xenbits.xen.org/xsa/advisory-307.html	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/	vendor-advisory, x_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html	vendor-advisory, x_refsource_SUSE
	https://www.debian.org/security/2020/dsa-4602	vendor-advisory, x_refsource_DEBIAN
	https://seclists.org/bugtraq/2020/Jan/21	mailing-list, x_refsource_BUGTRAQ
	https://security.gentoo.org/glsa/202003-56	vendor-advisory, x_refsource_GENTOO

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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