github - ghsa-v2fg-9ph4-5293

GHSA-V2FG-9PH4-5293

Vulnerability from github – Published: 2021-12-09 00:00 – Updated: 2021-12-11 00:01

Details

When parsing internationalized domain names, high bits of the characters in the URLs were sometimes stripped, resulting in inconsistencies that could lead to user confusion or attacks such as phishing. This vulnerability affects Firefox < 94.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-43533"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-08T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "When parsing internationalized domain names, high bits of the characters in the URLs were sometimes stripped, resulting in inconsistencies that could lead to user confusion or attacks such as phishing. This vulnerability affects Firefox \u003c 94.",
  "id": "GHSA-v2fg-9ph4-5293",
  "modified": "2021-12-11T00:01:00Z",
  "published": "2021-12-09T00:00:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43533"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1724233"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2021-48"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-43533 (GCVE-0-2021-43533)

Vulnerability from cvelistv5 – Published: 2021-12-08 21:20 – Updated: 2024-08-04 03:55

Summary

Severity ?

No CVSS data available.

CWE

URL Parsing may incorrectly parse internationalized domains

Assigner

mozilla

References

URL

Tags

	https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
	https://bugzilla.mozilla.org/show_bug.cgi?id=1724233	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Mozilla	Firefox	Affected: unspecified , < 94 (custom)

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{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:55:29.263Z",
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              "x_transferred"
            ],
            "url": "https://www.mozilla.org/security/advisories/mfsa2021-48/"
          },
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              "x_refsource_MISC",
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            ],
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1724233"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "94",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When parsing internationalized domain names, high bits of the characters in the URLs were sometimes stripped, resulting in inconsistencies that could lead to user confusion or attacks such as phishing. This vulnerability affects Firefox \u003c 94."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "URL Parsing may incorrectly parse internationalized domains",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-12-08T21:20:47",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
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      "references": [
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          "url": "https://www.mozilla.org/security/advisories/mfsa2021-48/"
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            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1724233"
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          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2021-43533",
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        "affects": {
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                  "product_data": [
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        },
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        "references": {
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            },
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  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
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  },
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  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-V2FG-9PH4-5293

CVE-2021-43533 (GCVE-0-2021-43533)

Tags

Sightings

Nomenclature