Vulnerability-Lookup

GSD-2021-28039

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG.

Aliases

CVE-2021-28039

Aliases

CVE-2021-28039

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-28039",
    "description": "An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG.",
    "id": "GSD-2021-28039",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-28039.html",
      "https://advisories.mageia.org/CVE-2021-28039.html",
      "https://security.archlinux.org/CVE-2021-28039"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-28039"
      ],
      "details": "An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG.",
      "id": "GSD-2021-28039",
      "modified": "2023-12-13T01:23:29.104803Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "STATE": "PUBLIC"
      },
      "affects": {
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    "nvd.nist.gov": {
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                "cpeMatch": [
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                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:x86:*",
                    "matchCriteriaId": "3FA33EE3-601B-4EC1-AC17-F948E8486DE5",
                    "versionEndIncluding": "5.11.3",
                    "versionStartIncluding": "5.9.0",
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          },
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            "lang": "es",
            "value": "Se detect\u00f3 un problema en el kernel de Linux versiones 5.9.x hasta 5.11.3, como es usada con Xen.\u0026#xa0;En algunas configuraciones menos comunes, un usuario de Sistema Operativo invitado PV x86 puede bloquear un dominio de controlador o Dom0 por medio de una gran cantidad de actividad de I/O.\u0026#xa0;El problema se relaciona con el uso indebido de las direcciones f\u00edsicas de invitados cuando una configuraci\u00f3n presenta CONFIG_XEN_UNPOPULATED_ALLOC pero no CONFIG_XEN_BALLOON_MEMORY_HOTPLUG"
          }
        ],
        "id": "CVE-2021-28039",
        "lastModified": "2024-03-25T01:15:50.483",
        "metrics": {
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              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 2.1,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
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              "userInteractionRequired": false
            }
          ],
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                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
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        "published": "2021-03-05T18:15:13.190",
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            ],
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        "vulnStatus": "Modified",
        "weaknesses": [
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        ]
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    }
  }
}

CVE-2021-28039 (GCVE-0-2021-28039)

Vulnerability from cvelistv5 – Published: 2021-03-05 00:00 – Updated: 2024-08-03 21:33

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
http://xenbits.xen.org/xsa/advisory-369.html
http://www.openwall.com/lists/oss-security/2021/03/05/2	mailing-list
https://security.netapp.com/advisory/ntap-2021040…
https://git.kernel.org/cgit/linux/kernel/git/torv…

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T21:33:17.404Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
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            "url": "http://xenbits.xen.org/xsa/advisory-369.html"
          },
          {
            "name": "[oss-security] 20210305 Xen Security Advisory 369 v2 (CVE-2021-28039) - Linux: special config may crash when trying to map foreign pages",
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            "url": "http://www.openwall.com/lists/oss-security/2021/03/05/2"
          },
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            "url": "https://security.netapp.com/advisory/ntap-20210409-0001/"
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            "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=882213990d32fd224340a4533f6318dd152be4b2"
          }
        ],
        "title": "CVE Program Container"
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    "cna": {
      "affected": [
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          "vendor": "n/a",
          "versions": [
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        }
      ],
      "problemTypes": [
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          "descriptions": [
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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.