Vulnerability-Lookup

CVE-2023-4255 (GCVE-0-2023-4255)

Vulnerability from cvelistv5 – Published: 2023-12-21 16:08 – Updated: 2025-02-13 17:09

Title

W3m: out-of-bounds write in function checktype() in etc.c (incomplete fix for cve-2022-38223)

Summary

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.

Severity

5.5 (Medium)


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

CWE

CWE-787 - Out-of-bounds Write

Assigner

redhat redhat root

References

7 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2255207	issue-trackingx_refsource_REDHAT
https://github.com/tats/w3m/commit/edc602651c506a…
https://github.com/tats/w3m/issues/268
https://github.com/tats/w3m/pull/273
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

3 products

Vendor	Product	CPE status
n/a	w3m
Fedora	Fedora	guessed
Fedora	Extra Packages for Enterprise Linux	guessed

Date Public

2023-06-12 00:00

Credits

Red Hat would like to thank iskindar97@gmail.com for reporting this issue.

Show details on NVD website

JSON

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            "source": "secalert@redhat.com",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255207"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Issue Tracking",
              "Patch"
            ],
            "url": "https://github.com/tats/w3m/issues/268"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Patch"
            ],
            "url": "https://github.com/tats/w3m/pull/273"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-11-21T14:57:05+00:00",
      "cve": "CVE-2023-4255",
      "id": "CVE-2023-4255",
      "initial_release_date": "2023-06-12T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "w3m: out-of-bounds write in function checkType() in etc.c (incomplete fix for CVE-2022-38223)",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-4255.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T01:22:03Z",
      "cve": "CVE-2023-4255",
      "id": "CVE-2023-4255",
      "initial_release_date": "2023-12-20T02:09:57Z",
      "product_status:known_affected": "410",
      "product_status:known_not_affected": "43",
      "product_status:recommended": "5",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-4255",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-4255.json",
      "version": "34"
    }
  }
}

FKIE_CVE-2023-4255

Vulnerability from fkie_nvd - Published: 2023-12-21 16:15 - Updated: 2026-06-17 06:37

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2255207	Issue Tracking, Third Party Advisory
secalert@redhat.com	https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3	Patch
secalert@redhat.com	https://github.com/tats/w3m/issues/268	Exploit, Issue Tracking, Patch
secalert@redhat.com	https://github.com/tats/w3m/pull/273	Issue Tracking, Patch
secalert@redhat.com	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/
secalert@redhat.com	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/
secalert@redhat.com	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=2255207	Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/tats/w3m/issues/268	Exploit, Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/tats/w3m/pull/273	Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/

Impacted products

Vendor	Product	Version
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

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "product": "w3m",
          "vendor": "n/a"
        },
        {
          "collectionURL": "https://packages.fedoraproject.org/",
          "defaultStatus": "affected",
          "packageName": "w3m",
          "product": "Fedora",
          "vendor": "Fedora"
        },
        {
          "collectionURL": "https://packages.fedoraproject.org/",
          "defaultStatus": "affected",
          "packageName": "w3m",
          "product": "Extra Packages for Enterprise Linux",
          "vendor": "Fedora"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema de escritura fuera de los l\u00edmites en el manejo de retroceso de la funci\u00f3n checkType() en etc.c dentro de la aplicaci\u00f3n W3M. Esta vulnerabilidad se activa al proporcionar un archivo HTML especialmente manipulado al binario w3m. La explotaci\u00f3n de este fallo podr\u00eda provocar fallos en la aplicaci\u00f3n, lo que resultar\u00eda en una condici\u00f3n de denegaci\u00f3n de servicio."
    }
  ],
  "id": "CVE-2023-4255",
  "lastModified": "2026-06-17T06:37:25.357",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
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          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
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        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
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          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
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        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
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  "references": [
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    },
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    },
    {
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    },
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-787"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-HX3R-PH4G-9PX9

Vulnerability from github – Published: 2023-12-21 18:30 – Updated: 2024-03-27 03:31

Details

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-4255"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-12-21T16:15:10Z",
    "severity": "MODERATE"
  },
  "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.",
  "id": "GHSA-hx3r-ph4g-9px9",
  "modified": "2024-03-27T03:31:16Z",
  "published": "2023-12-21T18:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4255"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tats/w3m/issues/268"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tats/w3m/pull/273"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255207"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2023-4255

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-4255

Aliases

CVE-2023-4255

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-4255",
    "id": "GSD-2023-4255"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-4255"
      ],
      "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.",
      "id": "GSD-2023-4255",
      "modified": "2023-12-13T01:20:27.149051Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2023-4255",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "w3m",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected"
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            },
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Fedora",
                    "version": {
                      "version_data": [
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                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected"
                          }
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Extra Packages for Enterprise Linux",
                    "version": {
                      "version_data": [
                        {
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                            "defaultStatus": "affected"
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                ]
              },
              "vendor_name": "Fedora"
            }
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        }
      },
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank iskindar97@gmail.com for reporting this issue."
        }
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          }
        ]
      },
      "impact": {
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
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            "privilegesRequired": "NONE",
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            "userInteraction": "REQUIRED",
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      "problemtype": {
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          },
          {
            "name": "https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3",
            "refsource": "MISC",
            "url": "https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3"
          },
          {
            "name": "https://github.com/tats/w3m/issues/268",
            "refsource": "MISC",
            "url": "https://github.com/tats/w3m/issues/268"
          },
          {
            "name": "https://github.com/tats/w3m/pull/273",
            "refsource": "MISC",
            "url": "https://github.com/tats/w3m/pull/273"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AULOBQJLXE2KCT5UVQMKGEFL4GFIAOED/"
          },
          {
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
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          {
            "nodes": [
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        "descriptions": [
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            "lang": "en",
            "value": "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."
          },
          {
            "lang": "es",
            "value": "Se descubri\u00f3 un problema de escritura fuera de los l\u00edmites en el manejo de retroceso de la funci\u00f3n checkType() en etc.c dentro de la aplicaci\u00f3n W3M. Esta vulnerabilidad se activa al proporcionar un archivo HTML especialmente manipulado al binario w3m. La explotaci\u00f3n de este fallo podr\u00eda provocar fallos en la aplicaci\u00f3n, lo que resultar\u00eda en una condici\u00f3n de denegaci\u00f3n de servicio."
          }
        ],
        "id": "CVE-2023-4255",
        "lastModified": "2024-03-27T03:15:10.537",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
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              "impactScore": 3.6,
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              "type": "Primary"
            },
            {
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                "baseScore": 5.5,
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              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "secalert@redhat.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2023-12-21T16:15:10.017",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
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              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255207"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
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            ],
            "url": "https://github.com/tats/w3m/commit/edc602651c506aeeb60544b55534dd1722a340d3"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
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              "Patch"
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            "url": "https://github.com/tats/w3m/issues/268"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Issue Tracking",
              "Patch"
            ],
            "url": "https://github.com/tats/w3m/pull/273"
          },
          {
            "source": "secalert@redhat.com",
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          },
          {
            "source": "secalert@redhat.com",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MKFZQUK7FPWWJQYICDZZ4YWIPUPQ2D3R/"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TODROGVCWZ435HQIZE6ARQC5LPQLIA5C/"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}

SUSE-SU-2024:0014-1

Vulnerability from csaf_suse - Published: 2024-01-02 17:51 - Updated: 2026-09-20 15:36

Summary

Security update for w3m

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2023-4255.

CVE-2023-4255

5.5 (Medium)


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

Recommended: 12 products

Open the full advisory

UBUNTU-CVE-2023-4255 (CVE-2023-4255)

Vulnerability from osv_ubuntu – Published: 2024-01-02 00:00 – Updated: 2025-10-24 05:01 – Source website

Details

Severity

5.5 (Medium)


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

5.5 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-4255	REPORT
	https://github.com/tats/w3m/pull/273	REPORT
	https://ubuntu.com/security/notices/USN-6580-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2023-4255	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "w3m",
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            "binary_name": "w3m-img",
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          }
        ]
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      "package": {
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        "name": "w3m",
        "purl": "pkg:deb/ubuntu/w3m@0.5.3-15ubuntu0.2+esm2?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.3-15ubuntu0.2+esm2"
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          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.5.3-11",
        "0.5.3-12",
        "0.5.3-13",
        "0.5.3-15",
        "0.5.3-15ubuntu0.1",
        "0.5.3-15ubuntu0.2",
        "0.5.3-15ubuntu0.2+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "w3m",
            "binary_version": "0.5.3-26ubuntu0.2"
          },
          {
            "binary_name": "w3m-img",
            "binary_version": "0.5.3-26ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "w3m",
        "purl": "pkg:deb/ubuntu/w3m@0.5.3-26ubuntu0.2?arch=source\u0026distro=xenial"
      },
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        {
          "events": [
            {
              "introduced": "0"
            }
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          "type": "ECOSYSTEM"
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        "0.5.3-26",
        "0.5.3-26build1",
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        "0.5.3-26ubuntu0.2"
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    },
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            "binary_version": "0.5.3-36ubuntu0.1+esm1"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "w3m",
        "purl": "pkg:deb/ubuntu/w3m@0.5.3-36ubuntu0.1+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.3-36ubuntu0.1+esm1"
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          "type": "ECOSYSTEM"
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    },
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            "binary_version": "0.5.3-37ubuntu0.2"
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    },
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      "type": "REPORT",
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    }
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  "related": [
    "USN-6580-1"
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  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-4255"
  ]
}

WID-SEC-W-2024-0004

Vulnerability from csaf_certbund - Published: 2024-01-02 23:00 - Updated: 2024-03-18 23:00

Summary

w3m: Schwachstelle ermöglicht Denial of Service

Severity

Mittel

Scope

1 vulnerability in this advisory, including CVE-2023-4255.

CVE-2023-4255

Es besteht eine Schwachstelle in w3m. Dieser Fehler besteht in der Backspace-Behandlung der checkType()-Funktion in der Datei etc.c aufgrund eines Out-of-bounds-Schreibproblems. Durch die Bereitstellung einer speziell gestalteten HTML-Datei kann ein entfernter, anonymer Angreifer diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen. Eine erfolgreiche Ausnutzung erfordert eine Benutzerinteraktion.

Known affected: 3 products

Open the full advisory

WID-SEC-W-2024-3377

Vulnerability from csaf_certbund - Published: 2024-11-07 23:00 - Updated: 2025-10-12 22:00

Summary

Dell PowerProtect Data Domain: Mehrere Schwachstellen

Severity

Mittel

Scope

124 vulnerabilities in this advisory, including CVE-2023-4255.

CVE-2023-4255

Known affected: 8 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2023-4255 (GCVE-0-2023-4255)

FKIE_CVE-2023-4255

GHSA-HX3R-PH4G-9PX9

GSD-2023-4255

SUSE-SU-2024:0014-1

UBUNTU-CVE-2023-4255 (CVE-2023-4255)

WID-SEC-W-2024-0004

WID-SEC-W-2024-3377

Tags

Sightings

Nomenclature

Related by attack behaviour