CVE-2023-4255

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2023-4255
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4255.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-4255
Downstream
Related
Published
2023-12-21T16:15:10Z
Modified
2025-10-16T05:48:36.212658Z
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

Git / github.com/tats/w3m

Affected ranges

Type
GIT
Repo
https://github.com/tats/w3m
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
edc602651c506aeeb60544b55534dd1722a340d3

Affected versions

Other

inu-0-2-2-base
release-0-2-1-inu-1-5
release-0-2-2
release-0-2-3
release-0-2-3-1
release-0-2-3-2
release-0-2-4
release-0-2-5
release-0-3
release-0-3-1
release-0-3-2
release-0-3-2-rc1
release-0-3-2-rc2
release-0-3-2-rc3
release-0-3-2-rc4
release-0-4
release-0-4-1
release-0-4-2
release-0-4-rc1
release-0-4-rc2
release-0-4-rc3
release-0-5
release-0-5-1
release-0-5-2
release-0-5-3

upstream/0.*

upstream/0.1.10+0.1.11pre+kokb23
upstream/0.3
upstream/0.5.1
upstream/0.5.2
upstream/0.5.3

v0.*

v0.5.3+debian-19
v0.5.3+git20150203
v0.5.3+git20150509
v0.5.3+git20150623
v0.5.3+git20150720
v0.5.3+git20150811
v0.5.3+git20151010
v0.5.3+git20151119
v0.5.3+git20160228
v0.5.3+git20160511
v0.5.3+git20160718
v0.5.3+git20161009
v0.5.3+git20161031
v0.5.3+git20161120
v0.5.3+git20170102
v0.5.3+git20180125
v0.5.3+git20190105
v0.5.3+git20200502
v0.5.3+git20210102
v0.5.3+git20220429
v0.5.3+git20230121

Database specific 

{
    "vanir_signatures": [
        {
            "digest": {
                "length": 5123.0,
                "function_hash": "295724129922167229010520669919116639190"
            },
            "target": {
                "function": "checkType",
                "file": "etc.c"
            },
            "signature_type": "Function",
            "source": "https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3",
            "deprecated": false,
            "signature_version": "v1",
            "id": "CVE-2023-4255-6dcfb28a"
        },
        {
            "digest": {
                "line_hashes": [
                    "26460203148569538143327425248504244236",
                    "57830455825382049290991589887607861603",
                    "310247818144009291104860925577274623094",
                    "13455033645732134721802913651060951318",
                    "26460203148569538143327425248504244236",
                    "290663834867585646756821739283586001902",
                    "126908091885490007136439083806724560939",
                    "288785725841290717425727131037118380981"
                ],
                "threshold": 0.9
            },
            "target": {
                "file": "etc.c"
            },
            "signature_type": "Line",
            "source": "https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3",
            "deprecated": false,
            "signature_version": "v1",
            "id": "CVE-2023-4255-dab19ff2"
        }
    ]
}