DEBIAN-CVE-2023-4255

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Source
https://security-tracker.debian.org/tracker/CVE-2023-4255
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-4255.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2023-4255
Upstream
Published
2023-12-21T16:15:10Z
Modified
2025-09-30T05:17:49.262347Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / w3m

Package

Name
w3m
Purl
pkg:deb/debian/w3m?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.5.3+git20210102-6
0.5.3+git20210102-6+deb11u1
0.5.3+git20220429-1
0.5.3+git20230121-1
0.5.3+git20230121-2
0.5.3+git20230121-2.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / w3m

Package

Name
w3m
Purl
pkg:deb/debian/w3m?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.5.3+git20230121-2
0.5.3+git20230121-2.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / w3m

Package

Name
w3m
Purl
pkg:deb/debian/w3m?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.3+git20230121-2.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / w3m

Package

Name
w3m
Purl
pkg:deb/debian/w3m?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.3+git20230121-2.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}