github - ghsa-fhv5-v23r-vj74

ghsa-fhv5-v23r-vj74

Vulnerability from github

Published

2022-01-22 00:00

Modified

2022-07-11 00:00

Severity ?

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

Details

When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage.

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2020-19861"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120",
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-01-21T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage.",
  "id": "GHSA-fhv5-v23r-vj74",
  "modified": "2022-07-11T00:00:22Z",
  "published": "2022-01-22T00:00:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-19861"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NLnetLabs/ldns/issues/51"
    },
    {
      "type": "WEB",
      "url": "https://cwe.mitre.org/data/definitions/126.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2020-19861

Vulnerability from cvelistv5

Published

2022-01-21 14:22

Modified

2024-08-04 14:15

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/NLnetLabs/ldns/issues/51	x_refsource_MISC
	https://cwe.mitre.org/data/definitions/126.html	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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