Executive Summary

Informations
Name CVE-2018-16851 First vendor Publication 2018-11-28
Vendor Cve Last vendor Modification 2019-10-09

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Cvss Base Score 4 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16851

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 432
Os 5
Os 2

Nessus® Vulnerability Scanner

Date Description
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-c2a93f8e1b.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-e423e8743f.nasl - Type : ACT_GATHER_INFO
2018-12-17 Name : The remote Debian host is missing a security update.
File : debian_DLA-1607.nasl - Type : ACT_GATHER_INFO
2018-11-29 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2018-333-01.nasl - Type : ACT_GATHER_INFO
2018-11-29 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4345.nasl - Type : ACT_GATHER_INFO
2018-11-28 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_54976998f24811e881e2005056a311d1.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/106027
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16851
https://security.netapp.com/advisory/ntap-20181127-0001/
https://www.samba.org/samba/security/CVE-2018-16851.html
DEBIAN https://www.debian.org/security/2018/dsa-4345
GENTOO https://security.gentoo.org/glsa/202003-52
MLIST https://lists.debian.org/debian-lts-announce/2018/12/msg00005.html
UBUNTU https://usn.ubuntu.com/3827-1/
https://usn.ubuntu.com/3827-2/

Alert History

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Date Informations
2020-05-23 02:12:53
  • Multiple Updates
2020-05-23 01:09:33
  • Multiple Updates
2019-10-10 05:20:29
  • Multiple Updates
2019-02-05 00:19:26
  • Multiple Updates
2018-12-16 17:19:07
  • Multiple Updates
2018-11-29 17:19:37
  • Multiple Updates
2018-11-28 17:18:57
  • First insertion