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Samba 'fd_open_atomic infinite loop' Denial-of-Service Vulnerability
Information
Severity
Severity
Medium
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
6.8
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:S/C:N/I:N/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
6 years ago
Modified
Modified
5 years ago
Summary
This host is running Samba and is prone to denial-of-service vulnerability.
Insight
Insight
The flaw exists due to error in smbd which enters infinite loop when trying to open an invalid symlink with O_CREAT.
Affected Software
Affected Software
Samba versions before 4.4.10 and 4.5.x before 4.5.6
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to Samba 4.4.10 or 4.5.6 or later.