Vulnerability-Lookup

GHSA-4R96-HW22-HHC7

Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2024-03-21 03:33

Details

** DISPUTED ** An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE: a member of the QEMU security team disputes the significance of this issue because a "privileged guest user has many ways to cause similar DoS effect, without triggering this assert."

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2019-20175"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-754"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-12-31T04:15:00Z",
    "severity": "MODERATE"
  },
  "details": "** DISPUTED ** An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE: a member of the QEMU security team disputes the significance of this issue because a \"privileged guest user has many ways to cause similar DoS effect, without triggering this assert.\"",
  "id": "GHSA-4r96-hw22-hhc7",
  "modified": "2024-03-21T03:33:48Z",
  "published": "2022-05-24T17:05:26Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20175"
    },
    {
      "type": "WEB",
      "url": "https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html"
    },
    {
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      "url": "https://www.mail-archive.com/qemu-devel%40nongnu.org/msg667396.html"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/qemu-devel@nongnu.org/msg667396.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2019-20175 (GCVE-0-2019-20175)

Vulnerability from cvelistv5 – Published: 2019-12-31 03:27 – Updated: 2024-08-05 02:39 Disputed

Summary

An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE: a member of the QEMU security team disputes the significance of this issue because a "privileged guest user has many ways to cause similar DoS effect, without triggering this assert.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-26 19:35 UTC

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://lists.nongnu.org/archive/html/qemu-devel/…	x_refsource_MISC
https://lists.nongnu.org/archive/html/qemu-devel/…	x_refsource_MISC
https://lists.nongnu.org/archive/html/qemu-devel/…	x_refsource_MISC
https://www.mail-archive.com/qemu-devel%40nongnu.…	x_refsource_MISC
https://lists.nongnu.org/archive/html/qemu-devel/…	x_refsource_MISC

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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

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