Vulnerability-Lookup

BREW-GIT-CVE-2018-1000021 (CVE-2018-1000021)

Vulnerability from osv_homebrew – Published: 2026-10-15 20:03 – Updated: 2026-10-15 20:03 – Source website

Details

GIT version 2.15.1 and earlier contains a Input Validation Error vulnerability in Client that can result in problems including messing up terminal configuration to RCE. This attack appear to be exploitable via The user must interact with a malicious git server, (or have their traffic modified in a MITM attack).

Severity

5.0 (Medium)


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

References

URL

Type

http://www.batterystapl.es/2018/01/security-impli…

ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "2.55.0"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "git",
        "purl": "pkg:brew/git"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.6.3.1"
            },
            {
              "fixed": "2.55.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "git",
    "upstream_evidence": [
      {
        "ecosystem": "GIT",
        "key": "https://github.com/git/git",
        "name": "https://github.com/git/git",
        "strategy": "git",
        "subject_version": "2.56.0"
      },
      {
        "ecosystem": "Debian",
        "key": "Debian/git",
        "name": "git",
        "strategy": "distro"
      },
      {
        "ecosystem": "GIT",
        "key": "upstream:https://github.com/git/git",
        "name": "https://github.com/git/git",
        "strategy": "distro",
        "subject_version": "2.56.0"
      },
      {
        "ecosystem": "Ubuntu",
        "key": "Ubuntu/git",
        "name": "git",
        "strategy": "distro"
      }
    ]
  },
  "details": "GIT version 2.15.1 and earlier contains a Input Validation Error vulnerability in Client that can result in problems including messing up terminal configuration to RCE. This attack appear to be exploitable via The user must interact with a malicious git server, (or have their traffic modified in a MITM attack).",
  "id": "BREW-git-CVE-2018-1000021",
  "modified": "2026-10-15T20:03:53Z",
  "published": "2026-10-15T20:03:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://www.batterystapl.es/2018/01/security-implications-of-ansi-escape.html"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2018-1000021"
  ]
}

CVE-2018-1000021 (GCVE-0-2018-1000021)

Vulnerability from cvelistv5 – Published: 2018-02-09 23:00 – Updated: 2024-08-05 12:33

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2322 records in the last 180 days details

References

1 reference

URL	Tags
http://www.batterystapl.es/2018/01/security-impli…	x_refsource_MISC

Date Public

2018-01-06 00:00

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T12:33:48.619Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_transferred"
            ],
            "url": "http://www.batterystapl.es/2018/01/security-implications-of-ansi-escape.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
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          "versions": [
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      "datePublic": "2018-01-06T00:00:00.000Z",
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        }
      ],
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              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-02-09T22:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://www.batterystapl.es/2018/01/security-implications-of-ansi-escape.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "DATE_ASSIGNED": "1/6/2018 4:59:26",
          "ID": "CVE-2018-1000021",
          "REQUESTER": "riley@mailo.com",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
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                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
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                      }
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            }
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        "references": {
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    "dateReserved": "2018-01-29T00:00:00.000Z",
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    "state": "PUBLISHED"
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  "dataVersion": "5.1"
}

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.

Vulnerability timeline

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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.
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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.

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