CVE-2018-16852: Null Pointer Dereference
First published: Wed Nov 28 2018(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Samba | >=4.9.0<4.9.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-16852?
CVE-2018-16852 has a medium severity rating due to the possibility of a NULL pointer dereference leading to a denial of service.
How do I fix CVE-2018-16852?
To fix CVE-2018-16852, you should upgrade Samba to version 4.9.3 or later.
What versions of Samba are affected by CVE-2018-16852?
CVE-2018-16852 affects Samba versions 4.9.0 to 4.9.2.
Can CVE-2018-16852 be exploited remotely?
Yes, CVE-2018-16852 can be exploited remotely via vulnerabilities in the DNS management DCE/RPC server.
What kind of impact does CVE-2018-16852 have on systems?
The impact of CVE-2018-16852 includes the potential for denial of service to systems running affected Samba versions.
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