Denial of Service Vulnerability in Samba 4.x DNS Server

CVE-2014-0239 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

The internal DNS server in Samba 4.x before 4.0.18 does not check the QR field in the header section of an incoming DNS message before sending a response, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged response packet that triggers a communication loop, a related issue to CVE-1999-0103.

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