Vulnerability-Lookup

FKIE_CVE-2021-40110

Vulnerability from fkie_nvd - Published: 2022-01-04 09:15 - Updated: 2026-06-17 04:06

Severity

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

Summary

In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking.

References

URL	Tags
security@apache.org	http://www.openwall.com/lists/oss-security/2022/01/04/2	Mailing List, Third Party Advisory
security@apache.org	https://www.openwall.com/lists/oss-security/2022/01/04/2	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2022/01/04/2	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.openwall.com/lists/oss-security/2022/01/04/2	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	apache	james	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Apache James",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "3.6.0",
              "status": "affected",
              "version": "Apache James",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:james:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C857D994-8952-4A29-9B5C-CC3AADBAD82F",
              "versionEndExcluding": "3.6.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking."
    },
    {
      "lang": "es",
      "value": "En Apache James, usando Jazzer fuzzer, identificamos que un usuario de IMAP puede dise\u00f1ar comandos IMAP LIST para orquestar una denegaci\u00f3n de servicio usando una expresi\u00f3n regular vulnerable. Esto afectaba a Apache James versiones anteriores a 3.6.1. Recomendamos actualizar a Apache James versi\u00f3n 3.6.1 o superior, que refuerza el uso del motor de expresiones regulares RE2J para ejecutar regex en tiempo lineal sin retroceso"
    }
  ],
  "id": "CVE-2021-40110",
  "lastModified": "2026-06-17T04:06:32.313",
  "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
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-01-04T09:15:07.327",
  "references": [
    {
      "source": "security@apache.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2022/01/04/2"
    },
    {
      "source": "security@apache.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2022/01/04/2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2022/01/04/2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://www.openwall.com/lists/oss-security/2022/01/04/2"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-40110 (GCVE-0-2021-40110)

Vulnerability from cvelistv5 – Published: 2022-01-04 08:55 – Updated: 2024-08-04 02:27

Title

Apache James IMAP vulnerable to a ReDoS

Summary

Severity

No CVSS data available.

CWE

Regular expression Denial of service

Assigner

apache mitre root

References

2 references

URL	Tags
https://www.openwall.com/lists/oss-security/2022/…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/01/04/2	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache James	Affected: Apache James , ≤ 3.6.0 (custom)

Credits

Apache James PMC would like to thanks Benoit TELLIER for this report.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
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          "dateUpdated": "2024-08-04T02:27:31.846Z",
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            "url": "https://www.openwall.com/lists/oss-security/2022/01/04/2"
          },
          {
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            "tags": [
              "mailing-list",
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            ],
            "url": "http://www.openwall.com/lists/oss-security/2022/01/04/2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        {
          "product": "Apache James",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "3.6.0",
              "status": "affected",
              "version": "Apache James",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Apache James PMC would like to thanks Benoit TELLIER for this report."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "other": "moderate"
            },
            "type": "unknown"
          }
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      "problemTypes": [
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        }
      ],
      "source": {
        "defect": [
          "JAMES-3635"
        ],
        "discovery": "UNKNOWN"
      },
      "title": "Apache James IMAP vulnerable to a ReDoS",
      "x_generator": {
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      },
      "x_legacyV4Record": {
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          "ASSIGNER": "security@apache.org",
          "ID": "CVE-2021-40110",
          "STATE": "PUBLIC",
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Apache James",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "Apache James",
                            "version_value": "3.6.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Apache Software Foundation"
              }
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          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Apache James PMC would like to thanks Benoit TELLIER for this report."
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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.

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.