CVE-2023-4459— Kernel: vmxnet3: null pointer dereference in vmxnet3_rq_cleanup()
Quick assessment
Affected
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux Kernel存在安全漏洞，该漏洞源于vmxnet3 中的网络子组件中的drivers/net/vmxnet3/vmxnet3_drv.c 中的 vmxnet3_rq_cleanup 存在 NULL 指针取消引用缺陷。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-4459
Vulnerability Information
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Vulnerability Title
Kernel: vmxnet3: null pointer dereference in vmxnet3_rq_cleanup()
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux Kernel存在安全漏洞，该漏洞源于vmxnet3 中的网络子组件中的drivers/net/vmxnet3/vmxnet3_drv.c 中的 vmxnet3_rq_cleanup 存在 NULL 指针取消引用缺陷。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | 0:4.18.0-193.133.1.el8_2 ~ * |
cpe:/o:redhat:rhel_e4s:8.2::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 8.2 Telecommunications Update Service | 0:4.18.0-193.133.1.rt13.184.el8_2 ~ * |
cpe:/a:redhat:rhel_tus:8.2::nfv
|
|
| Red Hat | Red Hat Enterprise Linux 8.2 Telecommunications Update Service | 0:4.18.0-193.133.1.el8_2 ~ * |
cpe:/o:redhat:rhel_e4s:8.2::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | 0:4.18.0-193.133.1.el8_2 ~ * |
cpe:/o:redhat:rhel_e4s:8.2::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:4.18.0-305.125.1.el8_4 ~ * |
cpe:/o:redhat:rhel_e4s:8.4::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service | 0:4.18.0-305.125.1.rt7.201.el8_4 ~ * |
cpe:/a:redhat:rhel_tus:8.4::nfv
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service | 0:4.18.0-305.125.1.el8_4 ~ * |
cpe:/o:redhat:rhel_e4s:8.4::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | 0:4.18.0-305.125.1.el8_4 ~ * |
cpe:/o:redhat:rhel_e4s:8.4::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | 0:4.18.0-372.87.1.el8_6 ~ * |
cpe:/a:redhat:rhel_eus:8.6::crb
|
|
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | 0:5.14.0-70.93.2.el9_0 ~ * |
cpe:/a:redhat:rhel_eus:9.0::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | 0:5.14.0-70.93.1.rt21.165.el9_0 ~ * |
cpe:/a:redhat:rhel_eus:9.0::realtime
|
|
| Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | 0:4.18.0-372.87.1.el8_6 ~ * |
cpe:/a:redhat:rhel_eus:8.6::crb
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
II. Public POCs for CVE-2023-4459
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2023-4459 (1)
Vendor Advisories for CVE-2023-4459 (7)
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V. Comments for CVE-2023-4459
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