CVE-2023-4255

2023-12-2116:15:10

Debian Security Bug Tracker

security-tracker.debian.org

w3m

application

denial of service

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

6.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.6%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12allw3m<= 0.5.3+git20230121-2w3m_0.5.3+git20230121-2_all.deb
Debian11allw3m<= 0.5.3+git20210102-6+deb11u1w3m_0.5.3+git20210102-6+deb11u1_all.deb
Debian10allw3m<= 0.5.3-37w3m_0.5.3-37_all.deb
Debian999allw3m<= 0.5.3+git20230121-2w3m_0.5.3+git20230121-2_all.deb
Debian13allw3m<= 0.5.3+git20230121-2w3m_0.5.3+git20230121-2_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	w3m	<= 0.5.3+git20230121-2	w3m_0.5.3+git20230121-2_all.deb
Debian	11	all	w3m	<= 0.5.3+git20210102-6+deb11u1	w3m_0.5.3+git20210102-6+deb11u1_all.deb
Debian	10	all	w3m	<= 0.5.3-37	w3m_0.5.3-37_all.deb
Debian	999	all	w3m	<= 0.5.3+git20230121-2	w3m_0.5.3+git20230121-2_all.deb
Debian	13	all	w3m	<= 0.5.3+git20230121-2	w3m_0.5.3+git20230121-2_all.deb