github - ghsa-xj78-h3gx-cm6v

ghsa-xj78-h3gx-cm6v

Vulnerability from github

Published

2022-08-25 00:00

Modified

2022-08-29 20:06

Severity ?

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

Details

A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-4209"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-24T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A NULL pointer dereference flaw was found in GnuTLS. As Nettle\u0027s hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.",
  "id": "GHSA-xj78-h3gx-cm6v",
  "modified": "2022-08-29T20:06:54Z",
  "published": "2022-08-25T00:00:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4209"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2021-4209"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2044156"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gnutls/gnutls/-/issues/1306"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gnutls/gnutls/-/merge_requests/1503"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220915-0005"
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-4209

Vulnerability from cvelistv5

Published

2022-08-24 15:07

Modified

2024-08-03 17:16

Severity ?

Summary

References

▼	URL	Tags
	https://gitlab.com/gnutls/gnutls/-/issues/1306	x_refsource_MISC
	https://bugzilla.redhat.com/show_bug.cgi?id=2044156	x_refsource_MISC
	https://access.redhat.com/security/cve/CVE-2021-4209	x_refsource_MISC
	https://gitlab.com/gnutls/gnutls/-/merge_requests/1503	x_refsource_MISC
	https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20220915-0005/	x_refsource_CONFIRM

Impacted products

▼	Vendor	Product
	n/a	GnuTLS

Show details on NVD website

JSON

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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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