Vulnerability-Lookup

CVE-2018-21232 (GCVE-0-2018-21232)

Vulnerability from cvelistv5 – Published: 2020-04-29 13:36 – Updated: 2024-08-05 12:26

Summary

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

Severity

5.5 (Medium)


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

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://github.com/skvadrik/re2c/issues/219	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2020/…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/05/14/4	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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CNVD-2021-40720

Vulnerability from cnvd - Published: 2021-06-06

Title

re2c堆栈消耗漏洞

Description

re2c是一款开源的C语言和C++语言生成器。 re2c 2.0版本中存在安全漏洞。攻击者可利用该漏洞造成无限循环，消耗大量栈。

Severity

中

Patch Name

re2c堆栈消耗漏洞的补丁

Patch Description

re2c是一款开源的C语言和C++语言生成器。 re2c 2.0版本中存在安全漏洞。攻击者可利用该漏洞造成无限循环，消耗大量栈。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/skvadrik/re2c/issues/219

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-21232

Impacted products

Name
re2c RE2C 2.0

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-21232"
    }
  },
  "description": "re2c\u662f\u4e00\u6b3e\u5f00\u6e90\u7684C\u8bed\u8a00\u548cC++\u8bed\u8a00\u751f\u6210\u5668\u3002\n\nre2c 2.0\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u65e0\u9650\u5faa\u73af\uff0c\u6d88\u8017\u5927\u91cf\u6808\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/skvadrik/re2c/issues/219",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-40720",
  "openTime": "2021-06-06",
  "patchDescription": "re2c\u662f\u4e00\u6b3e\u5f00\u6e90\u7684C\u8bed\u8a00\u548cC++\u8bed\u8a00\u751f\u6210\u5668\u3002\r\n\r\nre2c 2.0\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u65e0\u9650\u5faa\u73af\uff0c\u6d88\u8017\u5927\u91cf\u6808\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": "re2c\u5806\u6808\u6d88\u8017\u6f0f\u6d1e\u7684\u8865\u4e01",
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  "serverity": "\u4e2d",
  "submitTime": "2020-04-30",
  "title": "re2c\u5806\u6808\u6d88\u8017\u6f0f\u6d1e"
}

FKIE_CVE-2018-21232

Vulnerability from fkie_nvd - Published: 2020-04-29 14:15 - Updated: 2026-06-17 01:54

Severity

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

Summary

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

References

URL	Tags
cve@mitre.org	http://www.openwall.com/lists/oss-security/2020/05/14/4
cve@mitre.org	https://github.com/skvadrik/re2c/issues/219	Exploit, Patch, Third Party Advisory
cve@mitre.org	https://www.openwall.com/lists/oss-security/2020/04/27/2	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2020/05/14/4
af854a3a-2127-422b-91ae-364da2661108	https://github.com/skvadrik/re2c/issues/219	Exploit, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.openwall.com/lists/oss-security/2020/04/27/2	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	re2c	re2c	*

JSON

To clipboard

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        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "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"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-04-29T14:15:14.417",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://www.openwall.com/lists/oss-security/2020/05/14/4"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/skvadrik/re2c/issues/219"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2020/04/27/2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2020/05/14/4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/skvadrik/re2c/issues/219"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2020/04/27/2"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-PGR8-GPGG-9J5M

Vulnerability from github – Published: 2022-05-24 17:16 – Updated: 2022-05-24 17:16

Details

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2018-21232"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-04-29T14:15:00Z",
    "severity": "MODERATE"
  },
  "details": "re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.",
  "id": "GHSA-pgr8-gpgg-9j5m",
  "modified": "2022-05-24T17:16:48Z",
  "published": "2022-05-24T17:16:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-21232"
    },
    {
      "type": "WEB",
      "url": "https://github.com/skvadrik/re2c/issues/219"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2020/04/27/2"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2020/05/14/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2018-21232

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

Details

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

Aliases

CVE-2018-21232

Aliases

CVE-2018-21232

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2018-21232",
    "description": "re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.",
    "id": "GSD-2018-21232",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-21232.html",
      "https://advisories.mageia.org/CVE-2018-21232.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-21232"
      ],
      "details": "re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.",
      "id": "GSD-2018-21232",
      "modified": "2023-12-13T01:22:25.527985Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2018-21232",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/skvadrik/re2c/issues/219",
            "refsource": "MISC",
            "url": "https://github.com/skvadrik/re2c/issues/219"
          },
          {
            "name": "https://www.openwall.com/lists/oss-security/2020/04/27/2",
            "refsource": "MISC",
            "url": "https://www.openwall.com/lists/oss-security/2020/04/27/2"
          },
          {
            "name": "[oss-security] 20200514 Re: re2c: infinite loop",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2020/05/14/4"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:re2c:re2c:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-21232"
        },
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              "value": "re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags."
            }
          ]
        },
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            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-674"
                }
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        },
        "references": {
          "reference_data": [
            {
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              "refsource": "MISC",
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                "Third Party Advisory"
              ],
              "url": "https://www.openwall.com/lists/oss-security/2020/04/27/2"
            },
            {
              "name": "https://github.com/skvadrik/re2c/issues/219",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/skvadrik/re2c/issues/219"
            },
            {
              "name": "[oss-security] 20200514 Re: re2c: infinite loop",
              "refsource": "MLIST",
              "tags": [],
              "url": "http://www.openwall.com/lists/oss-security/2020/05/14/4"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "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"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2020-05-14T12:15Z",
      "publishedDate": "2020-04-29T14:15Z"
    }
  }
}

MSRC_CVE-2018-21232

Vulnerability from csaf_microsoft - Published: 2020-04-02 00:00 - Updated: 2022-01-19 00:00

Summary

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

Scope

1 vulnerability in this advisory, including CVE-2018-21232.

CVE-2018-21232

5.5 (Medium)


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

Fixed: 1 product Known affected: 1 product

https://learn.microsoft.com/en-us/azure/azure-linux/tutoria…

Open the full advisory

SUSE-SU-2023:3353-1

Vulnerability from csaf_suse - Published: 2023-08-18 07:54 - Updated: 2023-08-18 07:54

Summary

Security update for re2c

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2018-21232.

CVE-2018-21232

5.5 (Medium)


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

Recommended: 20 products

Open the full advisory

UBUNTU-CVE-2018-21232 (CVE-2018-21232)

Vulnerability from osv_ubuntu – Published: 2020-04-29 14:15 – Updated: 2026-05-20 14:50 – Source website

Details

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

Severity

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)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2018-21232	REPORT
	https://www.openwall.com/lists/oss-security/2020/…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2018-21232	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "re2c",
            "binary_version": "1.0.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "re2c",
        "purl": "pkg:deb/ubuntu/re2c@1.0.1-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "re2c",
            "binary_version": "1.3-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "re2c",
        "purl": "pkg:deb/ubuntu/re2c@1.3-1ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.1-1",
        "1.3-1",
        "1.3-1build1",
        "1.3-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "re2c",
            "binary_version": "3.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "re2c",
        "purl": "pkg:deb/ubuntu/re2c@3.0-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.3-1build1",
        "2.2-1",
        "3.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "re2c",
            "binary_version": "3.1-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "re2c",
        "purl": "pkg:deb/ubuntu/re2c@3.1-1build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.1-1",
        "3.1-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "re2c",
            "binary_version": "4.3-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "re2c",
        "purl": "pkg:deb/ubuntu/re2c@4.3-2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.1-1",
        "4.3-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "re2c",
            "binary_version": "4.4-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "re2c",
        "purl": "pkg:deb/ubuntu/re2c@4.4-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3-2",
        "4.3.1-1",
        "4.4-1"
      ]
    }
  ],
  "aliases": [],
  "details": "re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.",
  "id": "UBUNTU-CVE-2018-21232",
  "modified": "2026-05-20T14:50:59Z",
  "published": "2020-04-29T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-21232"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2020/04/27/2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-21232"
    }
  ],
  "related": [],
  "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": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-21232"
  ]
}

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-2018-21232 (GCVE-0-2018-21232)

CNVD-2021-40720

FKIE_CVE-2018-21232

GHSA-PGR8-GPGG-9J5M

GSD-2018-21232

MSRC_CVE-2018-21232

SUSE-SU-2023:3353-1

UBUNTU-CVE-2018-21232 (CVE-2018-21232)

Tags

Sightings

Nomenclature

Related by attack behaviour