CVE-2018-16852
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductSamba
PublishedNov 28, 2018
First seenNov 28, 2018
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- samba samba4.9.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| samba samba | 4.9.0 ≤ v < 4.9.3 | 4.9.3 |
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