7.5

CVE-2018-16853: samba Uncontrolled Resource Consumption

CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2018-16853DEBIAN-CVE-2018-16853
Published 28-11-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-16853 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in samba. EPSS estimates a 3.08% chance of exploitation in the next 30 days, higher than 87.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (CVE.org)
EPSS score
3.08%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2024:11365-1SUSE-SU-2018:4066-1

Timeline

  1. 28-11-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

3.08%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 3.08% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.08%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

[unknown]1 product
  • sambaEOL4.7.12 | 4.8.7 | 4.9.3
Alpine1 product
  • samba≥ 4.7.0, < 4.8.7-r0
Debian1 product
  • samba< 2:4.9.2+dfsg-2
Samba1 product
  • samba≥ 4.7.0, < 4.7.12 | ≥ 4.8.0, < 4.8.7 | ≥ 4.9.0, < 4.9.3

4 vendors · 4 products

References

7 links