CVE-2023-42757

State: Published
Severity: 4.2 Medium
Published: May 7, 2024
Updated: Mar 26, 2025
Reserved: Sep 13, 2023

Description

Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling.

Scores

CVSS	Score	Vector	Source
3.1	4.2 Medium	CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://www.safebreach.com/blog/magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces/
https://github.com/SafeBreach-Labs/MagicDot
https://www.blackhat.com/asia-24/briefings/schedule/#magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces-36561

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