CVEvulnerability

CVE-2023-4255

5.5 MEDIUM Published 2023-12-21 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-12-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses
CWE-787

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.

Affected configurations

• tats w3m 0.5.3\+git20230121-1 • tats w3m 0.5.3\+git20230121-2 • tats w3m 0.5.3\+git20230129 • fedoraproject extra packages for enterprise linux 8.0 • fedoraproject fedora 39

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References