Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-42327 First vendor Publication 2021-10-21
Vendor Cve Last vendor Modification 2021-11-28

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 6.7
Base Score 6.7 Environmental Score 6.7
impact SubScore 5.9 Temporal Score 6.7
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity Low
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42327

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7
Os 1
Os 3414

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20211118-0005/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/driver...
https://www.mail-archive.com/amd-gfx@lists.freedesktop.org/msg69080.html

Alert History

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Date Informations
2022-03-11 01:59:06
  • Multiple Updates
2022-02-01 01:52:53
  • Multiple Updates
2021-12-11 12:53:35
  • Multiple Updates
2021-12-11 01:50:28
  • Multiple Updates
2021-11-29 05:23:02
  • Multiple Updates
2021-11-18 13:23:03
  • Multiple Updates
2021-11-18 05:23:03
  • Multiple Updates
2021-11-10 09:23:20
  • Multiple Updates
2021-11-06 09:23:00
  • Multiple Updates
2021-10-28 21:22:58
  • Multiple Updates
2021-10-27 00:22:52
  • Multiple Updates
2021-10-21 21:22:50
  • First insertion