NULL Pointer Dereference in Samba's DNS Management and DLZ Plugin
CVE-2018-16852

6.5MEDIUM

Key Information:

Vendor

[unknown]

Status
Samba
Vendor
CVE Published:
28 November 2018

What is CVE-2018-16852?

A vulnerability identified in Samba allows for a NULL pointer dereference when handling DNS zones via the DNS management DCE/RPC server. Specifically, if the DSPROPERTY_ZONE_MASTER_SERVERS or DSPROPERTY_ZONE_SCAVENGING_SERVERS properties are configured, this may lead to server termination during processing. This issue predominantly results in a denial of service, impacting the availability of services relying on affected Samba versions.

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Affected Version(s)

samba 4.9.3

References

https://www.samba.org/samba/security/CVE-2018-16852.html
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https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852
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https://security.netapp.com/advisory/ntap-20181127-0001/
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EPSS Score

6% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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