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Date: November 28, 2018
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.
Weakness Type (CWE)
NULL Pointer DereferenceCWE-476
Upgrade to version 4.9.3
|Attack Vector (AV):||NETWORK|
|Attack Complexity (AC):||HIGH|
|Privileges Required (PR):||HIGH|
|User Interaction (UI):||NONE|
|Access Vector (AV):||NETWORK|
|Access Complexity (AC):||MEDIUM|