Vulnerability-Lookup

CVE-2021-29376 (GCVE-0-2021-29376)

Vulnerability from cvelistv5 – Published: 2021-03-30 06:24 – Updated: 2024-08-03 22:02

Summary

ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.

Severity

7.5 (High)


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

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://www.openwall.com/lists/oss-security/2021/…	x_refsource_MISC
http://www.eterna.com.au/ircii/	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/03/30/4	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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}

FKIE_CVE-2021-29376

Vulnerability from fkie_nvd - Published: 2021-03-30 07:15 - Updated: 2026-06-17 03:47

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.

References

URL	Tags
cve@mitre.org	http://www.eterna.com.au/ircii/	Product, Vendor Advisory
cve@mitre.org	http://www.openwall.com/lists/oss-security/2021/03/30/4	Mailing List, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2021/08/msg00022.html	Mailing List, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2021/08/msg00023.html	Mailing List, Third Party Advisory
cve@mitre.org	https://www.openwall.com/lists/oss-security/2021/03/24/2	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.eterna.com.au/ircii/	Product, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2021/03/30/4	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2021/08/msg00022.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2021/08/msg00023.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.openwall.com/lists/oss-security/2021/03/24/2	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	eterna	ircii	*
	debian	debian_linux	9.0

JSON

To clipboard

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        "userInteractionRequired": false
      }
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          "baseScore": 7.5,
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          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-03-30T07:15:12.007",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
        "Product",
        "Vendor Advisory"
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      "url": "http://www.eterna.com.au/ircii/"
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    {
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        "Third Party Advisory"
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    },
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    },
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    },
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      "url": "https://www.openwall.com/lists/oss-security/2021/03/24/2"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "NVD-CWE-noinfo"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-93FJ-MJR2-94HW

Vulnerability from github – Published: 2022-05-24 17:45 – Updated: 2022-05-24 17:45

Details

ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-29376"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-03-30T07:15:00Z",
    "severity": "HIGH"
  },
  "details": "ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.",
  "id": "GHSA-93fj-mjr2-94hw",
  "modified": "2022-05-24T17:45:53Z",
  "published": "2022-05-24T17:45:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29376"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/08/msg00022.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/08/msg00023.html"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2021/03/24/2"
    },
    {
      "type": "WEB",
      "url": "http://www.eterna.com.au/ircii"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/03/30/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2021-29376

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.

Aliases

CVE-2021-29376

Aliases

CVE-2021-29376

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-29376",
    "description": "ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.",
    "id": "GSD-2021-29376"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-29376"
      ],
      "details": "ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.",
      "id": "GSD-2021-29376",
      "modified": "2023-12-13T01:23:36.778262Z",
      "schema_version": "1.4.0"
    }
  },
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            },
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            "baseScore": 5.0,
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            "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,
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          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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      "lastModifiedDate": "2021-09-21T17:48Z",
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    }
  }
}

UBUNTU-CVE-2021-29376 (CVE-2021-29376)

Vulnerability from osv_ubuntu – Published: 2021-03-30 07:15 – Updated: 2026-05-20 14:53 – Source website

Details

ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.

Severity

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-29376	REPORT
	http://www.eterna.com.au/ircii/	REPORT
	https://www.openwall.com/lists/oss-security/2021/…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-29376	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ircii",
            "binary_version": "20060725-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "ircii",
        "purl": "pkg:deb/ubuntu/ircii@20060725-1build1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
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            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "20060725-1",
        "20060725-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ircii",
            "binary_version": "20170704-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ircii",
        "purl": "pkg:deb/ubuntu/ircii@20170704-1build1?arch=source\u0026distro=bionic"
      },
      "ranges": [
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            {
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          ],
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        "20170704-1build1"
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    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ircii",
            "binary_version": "20190117-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "ircii",
        "purl": "pkg:deb/ubuntu/ircii@20190117-1?arch=source\u0026distro=focal"
      },
      "ranges": [
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      ],
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    },
    {
      "ecosystem_specific": {
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          {
            "binary_name": "ircii",
            "binary_version": "20210328-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ircii",
        "purl": "pkg:deb/ubuntu/ircii@20210328-2build1?arch=source\u0026distro=jammy"
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    },
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          {
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            "binary_version": "20210328-2build3"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
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      },
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  ],
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      "type": "CVSS_V3"
    },
    {
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      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-29376"
  ]
}

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-2021-29376 (GCVE-0-2021-29376)

FKIE_CVE-2021-29376

GHSA-93FJ-MJR2-94HW

GSD-2021-29376

UBUNTU-CVE-2021-29376 (CVE-2021-29376)

Tags

Sightings

Nomenclature

Related by attack behaviour