Vulnerability Details : CVE-2018-16853
Samba from version 4.7.0 has a vulnerability that allows a user in a Samba AD domain to crash the KDC when Samba is built in the non-default MIT Kerberos configuration. With this advisory the Samba Team clarify that the MIT Kerberos build of the Samba AD DC is considered experimental. Therefore the Samba Team will not issue security patches for this configuration. Additionally, Samba 4.7.12, 4.8.7 and 4.9.3 have been issued as security releases to prevent building of the AD DC with MIT Kerberos unless --with-experimental-mit-ad-dc is specified to the configure command.
Products affected by CVE-2018-16853
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-16853
3.78%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-16853
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
5.9
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.2
|
3.6
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
Red Hat, Inc. |
CWE ids for CVE-2018-16853
-
The product does not properly control the allocation and maintenance of a limited resource.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2018-16853
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16853
1647246 – (CVE-2018-16853) CVE-2018-16853 samba: S4U2Self crash with MIT KDC buildIssue Tracking;Third Party Advisory
-
https://security.gentoo.org/glsa/202003-52
Samba: Multiple vulnerabilities (GLSA 202003-52) — Gentoo security
-
http://www.securityfocus.com/bid/106026
Samba CVE-2018-16853 Remote Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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https://security.netapp.com/advisory/ntap-20181127-0001/
November 2018 Samba Vulnerabilities in NetApp StorageGRID Products | NetApp Product SecurityThird Party Advisory
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https://www.samba.org/samba/security/CVE-2018-16853.html
Samba - Security Announcement ArchiveVendor Advisory
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