CVE-2018-16851

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Summary

CVECVE-2018-16851
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-11-28 14:29:00 UTC
Updated2022-08-29 20:03:00 UTC
DescriptionSamba 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.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 18.10 All All All
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 18.10 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Samba Samba All All All All
Application Samba Samba All All All All

References

ReferenceSourceLinkTags
1646377 – (CVE-2018-16851) CVE-2018-16851 samba: NULL pointer de-reference in Samba AD DC LDAP server CONFIRM bugzilla.redhat.com Issue Tracking, Third Party Advisory
Samba - Security Announcement Archive CONFIRM www.samba.org Patch, Vendor Advisory
Samba CVE-2018-16851 Remote Denial of Service Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
[SECURITY] [DLA 1607-1] samba security update MLIST lists.debian.org Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-4345-1 samba DEBIAN www.debian.org Third Party Advisory
USN-3827-1: Samba vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Third Party Advisory
USN-3827-2: Samba vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com Third Party Advisory
November 2018 Samba Vulnerabilities in NetApp StorageGRID Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
Samba: Multiple vulnerabilities (GLSA 202003-52) — Gentoo security GENTOO security.gentoo.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500637 Alpine Linux Security Update for samba
  • 504401 Alpine Linux Security Update for samba
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