CVE-2023-0821 (GCVE-0-2023-0821)

Vulnerability from cvelistv5 – Published: 2023-02-16 21:23 – Updated: 2025-03-18 14:35
VLAI
Title
Nomad Client Vulnerable to Decompression Bombs in Artifact Block
Summary
HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-18 14:35 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
Impacted products
Vendor Product Version CPE status
HashiCorp Nomad Affected: 0 , ≤ 1.2.15 (semver)
Affected: 0 , ≤ 1.3.8 (semver)
Affected: 0 , ≤ 1.4.3 (semver)
guessed Create a notification for this product.
HashiCorp Nomad Enterprise Affected: 0 , ≤ 1.2.15 (semver)
Affected: 0 , ≤ 1.3.8 (semver)
Affected: 0 , ≤ 1.4.3 (semver)
guessed Create a notification for this product.
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        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "64 bit",
                "32 bit",
                "x86",
                "ARM",
                "MacOS",
                "Windows",
                "Linux"
              ],
              "product": "Nomad",
              "repo": "https://github.com/hashicorp/nomad",
              "vendor": "HashiCorp",
              "versions": [
                {
                  "lessThanOrEqual": "1.2.15",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "1.3.8",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "1.4.3",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "64 bit",
                "32 bit",
                "x86",
                "ARM",
                "MacOS",
                "Windows",
                "Linux"
              ],
              "product": "Nomad Enterprise",
              "vendor": "HashiCorp",
              "versions": [
                {
                  "lessThanOrEqual": "1.2.15",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "1.3.8",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "1.4.3",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4."
                }
              ],
              "value": "HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-572",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-572 Artificially Inflate File Sizes"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-409",
                  "description": "CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-02-16T21:23:24.500Z",
            "orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
            "shortName": "HashiCorp"
          },
          "references": [
            {
              "url": "https://discuss.hashicorp.com/t/hcsec-2023-05-nomad-client-vulnerable-to-decompression-bombs-in-artifact-block/50292"
            }
          ],
          "source": {
            "discovery": "INTERNAL"
          },
          "title": "Nomad Client Vulnerable to Decompression Bombs in Artifact Block"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
        "assignerShortName": "HashiCorp",
        "cveId": "CVE-2023-0821",
        "datePublished": "2023-02-16T21:23:24.500Z",
        "dateReserved": "2023-02-13T21:43:02.039Z",
        "dateUpdated": "2025-03-18T14:35:44.335Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.



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.