Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2022-40133— There is an UAF vulnerability in vmwgfx driver

Quick assessment

Affected
Linux kernel
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，该漏洞源于其vmwgfx驱动程序的/gpu/vmxgfx/vmxgfx_execbuf.c组件中的“vmw_execbuf_tie_context”函数存在释放后重用，设备文件为“/dev/dri/renderD128（或Dxxx）”。该缺陷允许具有系统用户帐户的本地攻击者获得特权导致拒绝服务。

CVSS 6.3 · Medium EPSS 0.63% · P48

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2022-40133

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
There is an UAF vulnerability in vmwgfx driver
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free(UAF) vulnerability was found in function 'vmw_execbuf_tie_context' in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in Linux kernel's vmwgfx driver with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
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，该漏洞源于其vmwgfx驱动程序的/gpu/vmxgfx/vmxgfx_execbuf.c组件中的“vmw_execbuf_tie_context”函数存在释放后重用，设备文件为“/dev/dri/renderD128（或Dxxx）”。该缺陷允许具有系统用户帐户的本地攻击者获得特权导致拒绝服务。
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
Linux kernel v4.20-rc1 ~ 5.13.0-52* -

II. Public POCs for CVE-2022-40133

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-40133

请登录查看更多情报信息。

Other References for CVE-2022-40133 (1)

Same Patch Batch · Linux · 2022-09-09 · 4 CVEs total

CVE-2022-36280 6.3 MEDIUM There is an out-of-bounds write vulnerability in vmwgfx driver
CVE-2022-38096 6.3 MEDIUM There is a NULL pointer vulnerability in vmwgfx driver
CVE-2022-38457 6.3 MEDIUM There is an UAF vulnerability in vmwgfx driver

IV. Related Vulnerabilities

Same product: kernel
Same vendor: Linux
Same weakness: CWE-416

V. Comments for CVE-2022-40133

No comments yet

Leave a comment