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CVE-2022-38096— There is a NULL pointer 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.

RISC-V是一个基于精简指令集原则的开源指令集架构，简易解释为开源软件运动相对应的一种“开源硬件”。 RISC-V kernel存在安全漏洞，该漏洞源于NULL指针取消引用漏洞，此漏洞允许在系统上拥有用户帐户的本地攻击者获得特权从而导致拒绝服务(DoS)。

CVSS 6.3 · Medium EPSS 0.79% · P55

Affected Version Matrix 1

VendorProduct Version RangeStatus
Linux kernel v4.20-rc1< 5.13.0-52* affected
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I. Basic Information for CVE-2022-38096

Vulnerability Information
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Vulnerability Title
There is a NULL pointer vulnerability in vmwgfx driver
Source: CVE Program / CVE List V5
Vulnerability Description
A NULL pointer dereference vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in GPU component of Linux kernel 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
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
RISC-V 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RISC-V是一个基于精简指令集原则的开源指令集架构，简易解释为开源软件运动相对应的一种“开源硬件”。 RISC-V kernel存在安全漏洞，该漏洞源于NULL指针取消引用漏洞，此漏洞允许在系统上拥有用户帐户的本地攻击者获得特权从而导致拒绝服务(DoS)。
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-2022-38096

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III. Intelligence Information for CVE-2022-38096

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Mailing List Discussions for CVE-2022-38096 (1)

Other References for CVE-2022-38096 (1)

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

CVE-2022-40133 6.3 MEDIUM There is an UAF vulnerability in vmwgfx driver
CVE-2022-36280 6.3 MEDIUM There is an out-of-bounds write 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-476

V. Comments for CVE-2022-38096

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