Vulnerability-Lookup

FKIE_CVE-2018-12021

Vulnerability from fkie_nvd - Published: 2018-07-05 18:29 - Updated: 2026-06-17 01:37

Severity

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

Summary

Singularity 2.3.0 through 2.5.1 is affected by an incorrect access control on systems supporting overlay file system. When using the overlay option, a malicious user may access sensitive information by exploiting a few specific Singularity features.

References

URL	Tags
cve@mitre.org	http://www.openwall.com/lists/oss-security/2019/05/16/1
cve@mitre.org	https://github.com/singularityware/singularity/releases/tag/2.5.2	Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2019/05/16/1
af854a3a-2127-422b-91ae-364da2661108	https://github.com/singularityware/singularity/releases/tag/2.5.2	Release Notes, Third Party Advisory

Impacted products

	Vendor	Product	Version
	sylabs	singularity	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sylabs:singularity:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "ACB55C34-D5C2-4030-93F5-EA7171515D8D",
              "versionEndIncluding": "2.5.1",
              "versionStartIncluding": "2.3.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Singularity 2.3.0 through 2.5.1 is affected by an incorrect access control on systems supporting overlay file system. When using the overlay option, a malicious user may access sensitive information by exploiting a few specific Singularity features."
    },
    {
      "lang": "es",
      "value": "Singularity desde la versi\u00f3n 2.3.0 hasta la 2.5.1 se ha visto afectado por un control de acceso incorrecto en los sistemas que soportan la superposici\u00f3n (overlay) del sistema de archivos. Al emplear la opci\u00f3n overlay, un usuario malicioso podr\u00eda acceder a informaci\u00f3n sensible explotando unas pocas caracter\u00edsticas espec\u00edficas de Singularity."
    }
  ],
  "id": "CVE-2018-12021",
  "lastModified": "2026-06-17T01:37:00.720",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": true,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 6.8,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-07-05T18:29:00.297",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://www.openwall.com/lists/oss-security/2019/05/16/1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/singularityware/singularity/releases/tag/2.5.2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2019/05/16/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/singularityware/singularity/releases/tag/2.5.2"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2018-12021 (GCVE-0-2018-12021)

Vulnerability from cvelistv5 – Published: 2018-07-05 18:00 – Updated: 2024-08-05 08:24

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/singularityware/singularity/re…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2019/05/16/1	mailing-listx_refsource_MLIST

Date Public

2018-07-03 00:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-05T08:24:03.626Z",
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            "url": "https://github.com/singularityware/singularity/releases/tag/2.5.2"
          },
          {
            "name": "[oss-security] 20190516 Singularity 3.1.0: CVE-2019-11328: namespace privilege escalation and arbitrary file corruption",
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            "url": "http://www.openwall.com/lists/oss-security/2019/05/16/1"
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    "cna": {
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          "vendor": "n/a",
          "versions": [
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      "providerMetadata": {
        "dateUpdated": "2019-05-16T11:06:05.000Z",
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        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
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          "url": "https://github.com/singularityware/singularity/releases/tag/2.5.2"
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          "name": "[oss-security] 20190516 Singularity 3.1.0: CVE-2019-11328: namespace privilege escalation and arbitrary file corruption",
          "tags": [
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          ],
          "url": "http://www.openwall.com/lists/oss-security/2019/05/16/1"
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      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
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    "dateReserved": "2018-06-07T00:00:00.000Z",
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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.