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-2022-39842 First vendor Publication 2022-09-05
Vendor Cve Last vendor Modification 2022-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Overall CVSS Score 6.1
Base Score 6.1 Environmental Score 6.1
impact SubScore 4.2 Temporal Score 6.1
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact Low Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-39842

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 2
Os 3452

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2022/dsa-5257
MISC https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19
https://github.com/torvalds/linux/commit/a09d2d00af53b43c6f11e6ab3cb58443c2ca...
MLIST https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

Alert History

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Date Informations
2022-11-22 00:27:29
  • Multiple Updates
2022-11-02 05:27:35
  • Multiple Updates
2022-10-20 17:27:21
  • Multiple Updates
2022-10-19 13:27:48
  • Multiple Updates
2022-10-11 05:27:22
  • Multiple Updates
2022-10-11 01:25:32
  • Multiple Updates
2022-10-06 17:27:23
  • Multiple Updates
2022-10-03 00:27:26
  • Multiple Updates
2022-09-09 09:27:14
  • Multiple Updates
2022-09-06 09:27:24
  • Multiple Updates
2022-09-05 13:27:23
  • First insertion