GHSA-48V5-HP4G-W2RV

Vulnerability from github – Published: 2022-05-13 01:34 – Updated: 2022-05-13 01:34
VLAI?
Details

Samba from version 4.0.0 and before versions 4.7.12, 4.8.7, 4.9.3 is vulnerable to a denial of service. During the processing of an LDAP search before Samba's AD DC returns the LDAP entries to the client, the entries are cached in a single memory object with a maximum size of 256MB. When this size is reached, the Samba process providing the LDAP service will follow the NULL pointer, terminating the process. There is no further vulnerability associated with this issue, merely a denial of service.

Severity ?
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2018-16851"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-11-28T14:29:00Z",
    "severity": "MODERATE"
  },
  "details": "Samba from version 4.0.0 and before versions 4.7.12, 4.8.7, 4.9.3 is vulnerable to a denial of service. During the processing of an LDAP search before Samba\u0027s AD DC returns the LDAP entries to the client, the entries are cached in a single memory object with a maximum size of 256MB. When this size is reached, the Samba process providing the LDAP service will follow the NULL pointer, terminating the process. There is no further vulnerability associated with this issue, merely a denial of service.",
  "id": "GHSA-48v5-hp4g-w2rv",
  "modified": "2022-05-13T01:34:05Z",
  "published": "2022-05-13T01:34:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16851"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16851"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00005.html"
    },
    {
      "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-2018-16851.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/106027"
    }
  ],
  "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"
    }
  ]
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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