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CVE-2021-42327

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
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 5.14.14之前版本存在安全漏洞，该漏洞源于内核中drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c文件的dp_link_settings_write中存在基于堆的缓冲区溢出，攻击者可利用该漏洞可以写一个字符串到AMD GPU显示驱动调试文件系统。在parse_write_buffer_into_params函数中，当它使用从用户

AI Predicted 7.8 Difficulty: Easy EPSS 0.87% · P56
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I. Basic Information for CVE-2021-42327

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
dp_link_settings_write in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c in the Linux kernel through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU display drivers debug filesystem. There are no checks on size within parse_write_buffer_into_params when it uses the size of copy_from_user to copy a userspace buffer into a 40-byte heap buffer.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 缓冲区错误漏洞
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 5.14.14之前版本存在安全漏洞，该漏洞源于内核中drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c文件的dp_link_settings_write中存在基于堆的缓冲区溢出，攻击者可利用该漏洞可以写一个字符串到AMD GPU显示驱动调试文件系统。在parse_write_buffer_into_params函数中，当它使用从用户
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
- n/a n/a -

II. Public POCs for CVE-2021-42327

# POC Description Source Link Shenlong Link
1 kernel exploit POC for vulnerability i found in amd gpu driver https://github.com/docfate111/CVE-2021-42327 POC Details
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III. Intelligence Information for CVE-2021-42327

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Patches & Fixes for CVE-2021-42327 (1)

Vendor Advisories for CVE-2021-42327 (1)

Mailing List Discussions for CVE-2021-42327 (2)

Other References for CVE-2021-42327 (1)

Same Patch Batch · n/a · 2021-10-21 · 15 CVEs total

CVE-2021-27746 Hcl Technologies Hcl Connections 跨站脚本漏洞
CVE-2021-22034 vmware VMware vRealize Operations 信息泄露漏洞
CVE-2021-42716 stb 安全漏洞
CVE-2020-14263 Hcl Technologies Hcl Traveler Companion 加密问题漏洞
CVE-2021-20120 CommScope Arris Surfboard Sb8200 跨站请求伪造漏洞
CVE-2021-28975 Wp Mailster 跨站脚本漏洞
CVE-2021-42740 shell-quote 命令注入漏洞
CVE-2021-35512 Zoho ManageEngine Applications Manager 代码问题漏洞
CVE-2021-41792 Alfresco 代码问题漏洞
CVE-2021-41791 Alfresco 跨站脚本漏洞
CVE-2021-41790 Alfresco 安全漏洞
CVE-2021-42097 GNU Mailman 跨站请求伪造漏洞
CVE-2021-42096 GNU Mailman 安全漏洞
CVE-2021-42715 stb 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-42327

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