CVE-2023-33952— Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
Quick assessment
Affected
Red Hat Red Hat Enterprise Linux 8
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，该漏洞源于在对象执行进一步的自由操作之前缺乏验证对象的存在，攻击者可以利用此漏洞提升权限并在内核上下文中执行代码。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2023-33952
Vulnerability Information
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Vulnerability Title
Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
Source: CVE Program / CVE List V5
Vulnerability Description
A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel. This issue occurs due to the lack of validating the existence of an object prior to performing further free operations on the object, which may allow a local privileged user to escalate privileges and execute code in the context of the kernel.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 资源管理错误漏洞
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，该漏洞源于在对象执行进一步的自由操作之前缺乏验证对象的存在，攻击者可以利用此漏洞提升权限并在内核上下文中执行代码。
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 | 0:4.18.0-513.5.1.rt7.307.el8_9 ~ * |
cpe:/a:redhat:enterprise_linux:8::realtime
|
|
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.18.0-513.5.1.el8_9 ~ * |
cpe:/a:redhat:enterprise_linux:8::crb
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | 0:4.18.0-477.51.1.el8_8 ~ * |
cpe:/a:redhat:rhel_eus:8.8::crb
|
|
| Red Hat | Red Hat Enterprise Linux 9 | 0:5.14.0-362.8.1.el9_3 ~ * |
cpe:/a:redhat:enterprise_linux:9::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9 | 0:5.14.0-362.8.1.el9_3 ~ * |
cpe:/a:redhat:enterprise_linux:9::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | 0:5.14.0-284.75.1.el9_2 ~ * |
cpe:/a:redhat:rhel_eus:9.2::crb
|
|
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | 0:5.14.0-284.75.1.rt14.360.el9_2 ~ * |
cpe:/a:redhat:rhel_eus:9.2::realtime
|
|
| 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 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
II. Public POCs for CVE-2023-33952
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2023-33952 (8)
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🔗 RHSA-2023:6583 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
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Same Patch Batch · Red Hat · 2023-07-24 · 10 CVEs total
| CVE-2023-3812 | 7.8 HIGH | Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags |
| CVE-2023-38200 | 7.5 HIGH | Keylime: registrar is subject to a dos against ssl connections |
| CVE-2023-3567 | 7.1 HIGH | Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race |
| CVE-2023-3640 | 7.0 HIGH | Kernel: x86/mm: a per-cpu entry area leak was identified through the init_cea_offsets func |
| CVE-2023-33951 | 6.7 MEDIUM | Kernel: vmwgfx: race condition leading to information disclosure vulnerability |
| CVE-2023-3750 | 6.5 MEDIUM | Libvirt: improper locking in virstoragepoolobjlistsearch may lead to denial of service |
| CVE-2023-3019 | 6.0 MEDIUM | Qemu: e1000e: heap use-after-free in e1000e_write_packet_to_guest() |
| CVE-2023-3745 | 5.5 MEDIUM | Imagemagick: heap-buffer-overflow in pushcharpixel() in quantum-private.h |
| CVE-2023-3384 | 5.4 MEDIUM | Quay: stored cross site scripting |
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V. Comments for CVE-2023-33952
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