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Samba Multiple DoS Vulnerability (CVE-2020-10745, CVE-2020-14303)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Samba is prone to two denial-of-service vulnerabilities.
Insight
Insight
- Compression of replies to NetBIOS over TCP/IP name resolution and DNS packets (which can be supplied as UDP requests) can be abused to consume excessive amounts of CPU on the Samba AD DC (only). (CVE-2020-10745) - The AD DC NBT server in Samba 4.0 will enter a CPU spin and not process further requests once it receives a empty (zero-length) UDP packet to port 137. (CVE-2020-14303)
Affected Software
Affected Software
All Samba versions since 4.0.0.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 4.10.17, 4.11.11, 4.12.4 or later.