Vulnerability-Lookup

GHSA-QC9P-MJXM-J2WJ

Vulnerability from github – Published: 2022-05-13 01:50 – Updated: 2023-01-24 18:32

Summary

Asciidoctor Infinite Loop vulnerability

Details

Asciidoctor in versions < 1.5.8 allows remote attackers to cause a denial of service (infinite loop). The loop was caused by the fact that Parser.next_block was not exhausting all the lines in the reader as the while loop expected it would. This was happening because the regular expression that detects any list was not agreeing with the regular expression that detects a specific list type. So the line kept getting pushed back onto the reader, hence causing the loop.

Severity

7.5 (High)


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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "asciidoctor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-18385"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-24T18:32:26Z",
    "nvd_published_at": "2018-10-16T16:50:00Z",
    "severity": "HIGH"
  },
  "details": "Asciidoctor in versions \u003c 1.5.8 allows remote attackers to cause a denial of service (infinite loop). The loop was caused by the fact that `Parser.next_block` was not exhausting all the lines in the reader as the while loop expected it would. This was happening because the regular expression that detects any list was not agreeing with the regular expression that detects a specific list type. So the line kept getting pushed back onto the reader, hence causing the loop.",
  "id": "GHSA-qc9p-mjxm-j2wj",
  "modified": "2023-01-24T18:32:26Z",
  "published": "2022-05-13T01:50:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-18385"
    },
    {
      "type": "WEB",
      "url": "https://github.com/asciidoctor/asciidoctor/issues/2888"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/asciidoctor/asciidoctor"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/asciidoctor/CVE-2018-18385.yml"
    }
  ],
  "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"
    }
  ],
  "summary": "Asciidoctor Infinite Loop vulnerability"
}

CVE-2018-18385 (GCVE-0-2018-18385)

Vulnerability from cvelistv5 – Published: 2018-10-16 15:00 – Updated: 2024-08-05 11:08

Summary

Asciidoctor in versions < 1.5.8 allows remote attackers to cause a denial of service (infinite loop). The loop was caused by the fact that Parser.next_block was not exhausting all the lines in the reader as the while loop expected it would. This was happening because the regular expression that detects any list was not agreeing with the regular expression that detects a specific list type. So the line kept getting pushed back onto the reader, hence causing the loop.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

1 reference

URL	Tags
https://github.com/asciidoctor/asciidoctor/issues/2888	x_refsource_MISC

Date Public

2018-10-16 00:00

Show details on NVD website

JSON

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              "x_transferred"
            ],
            "url": "https://github.com/asciidoctor/asciidoctor/issues/2888"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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GSD-2018-18385

Vulnerability from gsd - Updated: 2022-05-13 00:00

Details

Asciidoctor in versions < 1.5.8 allows remote attackers to cause a denial of service (infinite loop). The loop was caused by the fact that `Parser.next_block` was not exhausting all the lines in the reader as the while loop expected it would. This was happening because the regular expression that detects any list was not agreeing with the regular expression that detects a specific list type. So the line kept getting pushed back onto the reader, hence causing the loop.

Aliases

CVE-2018-18385

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2018-18385",
    "description": "Asciidoctor in versions \u003c 1.5.8 allows remote attackers to cause a denial of service (infinite loop). The loop was caused by the fact that Parser.next_block was not exhausting all the lines in the reader as the while loop expected it would. This was happening because the regular expression that detects any list was not agreeing with the regular expression that detects a specific list type. So the line kept getting pushed back onto the reader, hence causing the loop.",
    "id": "GSD-2018-18385",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-18385.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
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            "name": "asciidoctor",
            "purl": "pkg:gem/asciidoctor"
          }
        }
      ],
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        "CVE-2018-18385",
        "GHSA-qc9p-mjxm-j2wj"
      ],
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      "id": "GSD-2018-18385",
      "modified": "2022-05-13T00:00:00.000Z",
      "published": "2022-05-13T00:00:00.000Z",
      "references": [
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          "type": "WEB",
          "url": "https://github.com/asciidoctor/asciidoctor/issues/2888"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 7.5,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Asciidoctor Infinite Loop vulnerability"
    }
  },
  "namespaces": {
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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}

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.

Action not permitted

GHSA-QC9P-MJXM-J2WJ

CVE-2018-18385 (GCVE-0-2018-18385)

GSD-2018-18385

Tags

Sightings

Nomenclature