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CVE-2021-3607 (GCVE-0-2021-3607)

Vulnerability from cvelistv5 – Published: 2022-02-24 18:50 – Updated: 2024-08-03 17:01
VLAI
Summary
An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Severity
6.0 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CWE
  • CWE-190 - >CWE-770->(CWE-125|CWE-476)
Assigner
References
Impacted products
Vendor Product Version CPE status
n/a QEMU Affected: qemu-kvm 6.1.0
Show details on NVD website
To clipboard 

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      "initial_release_date": "2021-06-17T00:00:00+00:00",
      "product_status:known_not_affected": "126",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "QEMU: pvrdma: unchecked malloc size due to integer overflow in init_dev_ring()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3607.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-08-31T02:11:14Z",
      "cve": "CVE-2021-3607",
      "id": "CVE-2021-3607",
      "initial_release_date": "2023-02-15T03:48:58Z",
      "product_status:known_affected": "389",
      "product_status:known_not_affected": "605",
      "product_status:recommended": "1610",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-3607",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-3607.json",
      "version": "46"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.