github - ghsa-q3v8-mj9m-2wq4

ghsa-q3v8-mj9m-2wq4

Vulnerability from github

Published

2022-05-13 01:34

Modified

2022-05-13 01:34

Severity ?

6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Samba from version 4.3.0 and before versions 4.7.12, 4.8.7 and 4.9.3 are vulnerable to a denial of service. When configured to accept smart-card authentication, Samba's KDC will call talloc_free() twice on the same memory if the principal in a validly signed certificate does not match the principal in the AS-REQ. This is only possible after authentication with a trusted certificate. talloc is robust against further corruption from a double-free with talloc_free() and directly calls abort(), terminating the KDC process.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-16841"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-11-28T14:29:00Z",
    "severity": "MODERATE"
  },
  "details": "Samba from version 4.3.0 and before versions 4.7.12, 4.8.7 and 4.9.3 are vulnerable to a denial of service. When configured to accept smart-card authentication, Samba\u0027s KDC will call talloc_free() twice on the same memory if the principal in a validly signed certificate does not match the principal in the AS-REQ. This is only possible after authentication with a trusted certificate. talloc is robust against further corruption from a double-free with talloc_free() and directly calls abort(), terminating the KDC process.",
  "id": "GHSA-q3v8-mj9m-2wq4",
  "modified": "2022-05-13T01:34:06Z",
  "published": "2022-05-13T01:34:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16841"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202003-52"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20181127-0001"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3827-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3827-2"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4345"
    },
    {
      "type": "WEB",
      "url": "https://www.samba.org/samba/security/CVE-2018-16841.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/106023"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2018-16841

Vulnerability from cvelistv5

Published

2018-11-28 14:00

Modified

2024-08-05 10:32

Severity ?

5.7 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Summary

References

▼	URL	Tags
	http://www.securityfocus.com/bid/106023	vdb-entry, x_refsource_BID
	https://usn.ubuntu.com/3827-2/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/3827-1/	vendor-advisory, x_refsource_UBUNTU
	https://security.netapp.com/advisory/ntap-20181127-0001/	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841	x_refsource_CONFIRM
	https://www.debian.org/security/2018/dsa-4345	vendor-advisory, x_refsource_DEBIAN
	https://www.samba.org/samba/security/CVE-2018-16841.html	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/202003-52	vendor-advisory, x_refsource_GENTOO

Impacted products

▼	Vendor	Product
	[UNKNOWN]	samba

Show details on NVD website

JSON

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{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-05T10:32:54.002Z",
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          },
          {
            "name": "USN-3827-2",
            "tags": [
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            ],
            "url": "https://usn.ubuntu.com/3827-2/"
          },
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            "name": "USN-3827-1",
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          },
          {
            "tags": [
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      ],
      "metrics": [
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
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            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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              {
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                    {
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                          {
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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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