CVEs-PoC/2023/CVE-2023-4255.md

CVE-2023-4255

Description

An out-of-bounds write issue has been discovered in the backspace handling of the checkType() function in etc.c within the W3M application. This vulnerability is triggered by supplying a specially crafted HTML file to the w3m binary. Exploitation of this flaw could lead to application crashes, resulting in a denial of service condition.

POC

Reference

• https://github.com/tats/w3m/issues/268

Github

• https://github.com/NaInSec/CVE-LIST
• https://github.com/Now-GodMode/fuzz-target
• https://github.com/fkie-cad/nvd-json-data-feeds
• https://github.com/iskindar/Prospector