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CVE-2023-4387 (GCVE-0-2023-4387)

Vulnerability from cvelistv5 – Published: 2023-08-16 18:49 – Updated: 2025-11-06 19:44
VLAI
Title
Kernel: vmxnet3: use-after-free in vmxnet3_rq_alloc_rx_buf()
Summary
A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers/net/vmxnet3/vmxnet3_drv.c in VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could allow a local attacker to crash the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all, which could also lead to a kernel information leak problem.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-425.3.1.el8 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:8::baseos
    cpe:/a:redhat:enterprise_linux:8::crb
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Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-162.6.1.el9_1 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Date Public
2022-05-14 00:00
Show details on NVD website
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-06T20:17:18+00:00",
      "cve": "CVE-2023-4387",
      "id": "CVE-2023-4387",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "286",
      "product_status:known_affected": "80",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: vmxnet3: use-after-free in vmxnet3_rq_alloc_rx_buf()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-4387.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T02:25:58Z",
      "cve": "CVE-2023-4387",
      "id": "CVE-2023-4387",
      "initial_release_date": "2023-08-18T02:12:25Z",
      "product_status:known_affected": "226",
      "product_status:known_not_affected": "8",
      "product_status:recommended": "1124",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-4387",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-4387.json",
      "version": "65"
    }
  }
}



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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.