6.5

CVE-2018-16852: samba NULL Pointer Dereference

CVSS: 6.5v3.0MediumModified
AliasesDEBIAN-CVE-2018-16852
Published 28-11-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-16852 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in samba. EPSS estimates a 2.23% chance of exploitation in the next 30 days, higher than 82.4% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (CVE.org)
EPSS score
2.23%
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 1 · Related 1
OPENSUSE-SU-2024:11365-1

Timeline

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

Description

Samba from version 4.9.0 and before version 4.9.3 is vulnerable to a NULL pointer de-reference. During the processing of an DNS zone in the DNS management DCE/RPC server, the internal DNS server or the Samba DLZ plugin for BIND9, if the DSPROPERTY_ZONE_MASTER_SERVERS property or DSPROPERTY_ZONE_SCAVENGING_SERVERS property is set, the server will follow a NULL pointer and terminate. There is no further vulnerability associated with this issue, merely a denial of service.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.23%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.23% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.23%

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
Debian1 product
  • samba< 2:4.9.2+dfsg-2
Samba1 product

3 vendors · 3 products

References

6 links