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CVE-2023-4459 (GCVE-0-2023-4459)

Vulnerability from cvelistv5 – Published: 2023-08-21 18:49 – Updated: 2025-11-15 08:17
VLAI
Title
Kernel: vmxnet3: null pointer dereference in vmxnet3_rq_cleanup()
Summary
A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:4.18.0-193.133.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.133.1.rt13.184.el8_2 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.2::nfv
    cpe:/a:redhat:rhel_tus:8.2::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.133.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Unaffected: 0:4.18.0-193.133.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.125.1.rt7.201.el8_4 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.4::nfv
    cpe:/a:redhat:rhel_tus:8.4::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:4.18.0-372.87.1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.93.2.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::appstream
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/o:redhat:rhel_eus:9.0::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.93.1.rt21.165.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::realtime
    cpe:/a:redhat:rhel_eus:9.0::nfv
Create a notification for this product.
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-372.87.1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
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
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Date Public
2022-05-14 00:00
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          "value": "In order to mitigate this issue, prevent the affected code from being loaded by blacklisting the kernel module \"vmxnet3\". For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278\n~~~\nExploiting this flaw will require CAP_NET_ADMIN access privilege in any user or network namespace.\n~~~"
        }
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    "dateReserved": "2023-08-21T16:21:49.200Z",
    "dateUpdated": "2025-11-15T08:17:03.994Z",
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      "current_release_date": "2023-08-25T00:00:00.000Z",
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      "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-4459.json",
      "version": "1"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-06T20:17:46+00:00",
      "cve": "CVE-2023-4459",
      "id": "CVE-2023-4459",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "579",
      "product_status:known_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-4459.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:49:49Z",
      "cve": "CVE-2023-4459",
      "id": "CVE-2023-4459",
      "initial_release_date": "2023-08-23T02:15:43Z",
      "product_status:known_affected": "240",
      "product_status:known_not_affected": "91",
      "product_status:recommended": "1096",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-4459",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-4459.json",
      "version": "58"
    }
  }
}



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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.