Vulnerability-Lookup

CVE-2018-6196 (GCVE-0-2018-6196)

Vulnerability from cvelistv5 – Published: 2018-01-25 03:00 – Updated: 2024-08-05 05:54

Summary

w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.

Severity

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/tats/w3m/commit/8354763b90490d…	x_refsource_CONFIRM
https://usn.ubuntu.com/3555-2/	vendor-advisoryx_refsource_UBUNTU
https://github.com/tats/w3m/issues/88	x_refsource_CONFIRM
https://usn.ubuntu.com/3555-1/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST

Date Public

2018-01-24 00:00

Show details on NVD website

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      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-6196.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T08:49:15Z",
      "cve": "CVE-2018-6196",
      "id": "CVE-2018-6196",
      "initial_release_date": "2023-02-15T04:30:31Z",
      "product_status:known_affected": "17",
      "product_status:known_not_affected": "26",
      "product_status:recommended": "79",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-6196",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-6196.json",
      "version": "22"
    }
  }
}

CNVD-2018-04399

Vulnerability from cnvd - Published: 2018-03-06

Title

w3m无限递归漏洞

Description

w3m是一款开源的基于文本的Web浏览器。 w3m 0.5.3及之前的版本中的HTMLlineproc0存在安全漏洞，该漏洞源于程序未能限制负的缩进值。攻击者可利用该漏洞造成拒绝服务（无限递归和崩溃）。

Severity

中

Patch Name

w3m无限递归漏洞的补丁

Patch Description

w3m是一款开源的基于文本的Web浏览器。 w3m 0.5.3及之前的版本中的HTMLlineproc0存在安全漏洞，该漏洞源于程序未能限制负的缩进值。攻击者可利用该漏洞造成拒绝服务（无限递归和崩溃）。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-6196

Impacted products

Name
W3M W3m <=0.5.3

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-6196"
    }
  },
  "description": "w3m\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u57fa\u4e8e\u6587\u672c\u7684Web\u6d4f\u89c8\u5668\u3002\r\n\r\nw3m 0.5.3\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684HTMLlineproc0\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236\u8d1f\u7684\u7f29\u8fdb\u503c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u9012\u5f52\u548c\u5d29\u6e83\uff09\u3002",
  "discovererName": "unknwon",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-04399",
  "openTime": "2018-03-06",
  "patchDescription": "w3m\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u57fa\u4e8e\u6587\u672c\u7684Web\u6d4f\u89c8\u5668\u3002\r\n\r\nw3m 0.5.3\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684HTMLlineproc0\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236\u8d1f\u7684\u7f29\u8fdb\u503c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u9012\u5f52\u548c\u5d29\u6e83\uff09\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "w3m\u65e0\u9650\u9012\u5f52\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "W3M W3m \u003c=0.5.3"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-6196",
  "serverity": "\u4e2d",
  "submitTime": "2018-01-25",
  "title": "w3m\u65e0\u9650\u9012\u5f52\u6f0f\u6d1e"
}

FKIE_CVE-2018-6196

Vulnerability from fkie_nvd - Published: 2018-01-25 03:29 - Updated: 2026-06-17 02:01

Severity

7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.

References

URL	Tags
cve@mitre.org	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
cve@mitre.org	https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92	Patch, Third Party Advisory
cve@mitre.org	https://github.com/tats/w3m/issues/88	Exploit, Patch, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html
cve@mitre.org	https://usn.ubuntu.com/3555-1/	Third Party Advisory
cve@mitre.org	https://usn.ubuntu.com/3555-2/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html
af854a3a-2127-422b-91ae-364da2661108	https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/tats/w3m/issues/88	Exploit, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html
af854a3a-2127-422b-91ae-364da2661108	https://usn.ubuntu.com/3555-1/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://usn.ubuntu.com/3555-2/	Third Party Advisory

Impacted products

Vendor	Product	Version
tats	w3m	*
canonical	ubuntu_linux	12.04
canonical	ubuntu_linux	14.04
canonical	ubuntu_linux	16.04
canonical	ubuntu_linux	17.10

JSON

To clipboard

{
  "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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            }
          ]
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      ],
      "source": "cve@mitre.org"
    }
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  "configurations": [
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      "lang": "es",
      "value": "w3m hasta la versi\u00f3n 0.5.3 es propenso a un error de recursi\u00f3n infinita en HTMLlineproc0 debido a que la funci\u00f3n feed_table_block_tag en table.c no evita un valor negativo de sangr\u00eda."
    }
  ],
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  "lastModified": "2026-06-17T02:01:29.700",
  "metrics": {
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          "version": "2.0"
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  "vulnStatus": "Modified",
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      "source": "nvd@nist.gov",
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  ]
}

GHSA-RHW8-JFW3-7W97

Vulnerability from github – Published: 2022-05-13 01:53 – Updated: 2022-05-13 01:53

Details

w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.

Severity

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2018-6196"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-01-25T03:29:00Z",
    "severity": "HIGH"
  },
  "details": "w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.",
  "id": "GHSA-rhw8-jfw3-7w97",
  "modified": "2022-05-13T01:53:03Z",
  "published": "2022-05-13T01:53:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6196"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tats/w3m/issues/88"
    },
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    },
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    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3555-2"
    },
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2018-6196

Vulnerability from gsd - Updated: 2023-12-13 01:22

Details

w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.

Aliases

CVE-2018-6196

Aliases

CVE-2018-6196

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2018-6196",
    "description": "w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.",
    "id": "GSD-2018-6196",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-6196.html",
      "https://ubuntu.com/security/CVE-2018-6196",
      "https://advisories.mageia.org/CVE-2018-6196.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      ],
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      "id": "GSD-2018-6196",
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                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                    "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9070C9D8-A14A-467F-8253-33B966C16886",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value."
          },
          {
            "lang": "es",
            "value": "w3m hasta la versi\u00f3n 0.5.3 es propenso a un error de recursi\u00f3n infinita en HTMLlineproc0 debido a que la funci\u00f3n feed_table_block_tag en table.c no evita un valor negativo de sangr\u00eda."
          }
        ],
        "id": "CVE-2018-6196",
        "lastModified": "2023-12-29T18:38:04.570",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2018-01-25T03:29:00.447",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00028.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/tats/w3m/commit/8354763b90490d4105695df52674d0fcef823e92"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Exploit",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/tats/w3m/issues/88"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.debian.org/debian-lts-announce/2020/04/msg00025.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3555-1/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3555-2/"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-835"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}

OPENSUSE-SU-2024:11504-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

w3m-0.5.3+git20180125-1.14 on GA media

Severity

Moderate

Scope

4 vulnerabilities in this advisory, including CVE-2018-6196.

CVE-2018-6196

6.5 (Medium)


                
                  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Recommended: 8 products

Open the full advisory

SUSE-SU-2019:0776-1

Vulnerability from csaf_suse - Published: 2019-03-27 10:39 - Updated: 2026-09-20 13:06

Summary

Security update for w3m

Severity

Moderate

Scope

3 vulnerabilities in this advisory, including CVE-2018-6196.

CVE-2018-6196

6.5 (Medium)


                
                  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Recommended: 26 products

Open the full advisory

UBUNTU-CVE-2018-6196 (CVE-2018-6196)

Vulnerability from osv_ubuntu – Published: 2018-01-24 00:00 – Updated: 2025-09-08 16:44 – Source website

Details

w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.

Severity

7.5 (High)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2018-6196	REPORT
	https://github.com/tats/w3m/issues/88	REPORT
	https://ubuntu.com/security/notices/USN-3555-1	ADVISORY
	https://ubuntu.com/security/notices/USN-3555-2	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2018-6196	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "w3m",
            "binary_version": "0.5.3-15ubuntu0.2"
          },
          {
            "binary_name": "w3m-img",
            "binary_version": "0.5.3-15ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "w3m",
        "purl": "pkg:deb/ubuntu/w3m@0.5.3-15ubuntu0.2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.3-15ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.5.3-11",
        "0.5.3-12",
        "0.5.3-13",
        "0.5.3-15",
        "0.5.3-15ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "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"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.3-26ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.5.3-24",
        "0.5.3-25",
        "0.5.3-26",
        "0.5.3-26build1",
        "0.5.3-26ubuntu0.1"
      ]
    }
  ],
  "aliases": [],
  "details": "w3m through 0.5.3 is prone to an infinite recursion flaw in HTMLlineproc0 because the feed_table_block_tag function in table.c does not prevent a negative indent value.",
  "id": "UBUNTU-CVE-2018-6196",
  "modified": "2025-09-08T16:44:46Z",
  "published": "2018-01-24T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-6196"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/tats/w3m/issues/88"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3555-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3555-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-6196"
    }
  ],
  "related": [
    "USN-3555-1",
    "USN-3555-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-6196"
  ]
}

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.

Detection rules are retrieved from Rulezet.

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-2018-6196 (GCVE-0-2018-6196)

CNVD-2018-04399

FKIE_CVE-2018-6196

GHSA-RHW8-JFW3-7W97

GSD-2018-6196

OPENSUSE-SU-2024:11504-1

SUSE-SU-2019:0776-1

UBUNTU-CVE-2018-6196 (CVE-2018-6196)

Tags

Sightings

Nomenclature

Related by attack behaviour