Out-of-bounds Write Affecting w3m package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-DEBIAN11-W3M-6138713
  • published22 Dec 2023
  • disclosed21 Dec 2023

Introduced: 21 Dec 2023

CVE-2023-4255  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 w3m.

NVD Description

Note: Versions mentioned in the description apply only to the upstream w3m package and not the w3m package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Scores

version 3.1