| Package | Affected versions | Patched versions |
|---|---|---|
| samba | = 4.0.0= 4.0.1= 4.0.10= 4.0.11= 4.0.12= 4.0.13= 4.0.14= 4.0.15= 4.0.16= 4.0.17= 4.0.18= 4.0.19= 4.0.2= 4.0.20= 4.0.21= 4.0.22= 4.0.23= 4.0.24= 4.0.25= 4.0.26= 4.0.3= 4.0.4= 4.0.5= 4.0.6= 4.0.7= 4.0.8= 4.0.9= 4.1.0= 4.1.1= 4.1.10= 4.1.11= 4.1.12= 4.1.13= 4.1.14= 4.1.15= 4.1.16= 4.1.17= 4.1.18= 4.1.19= 4.1.2= 4.1.20= 4.1.21= 4.1.22= 4.1.23= 4.1.3= 4.1.4= 4.1.5= 4.1.6= 4.1.7= 4.1.8= 4.1.9= 4.2.0= 4.2.1= 4.2.2= 4.2.3= 4.2.4= 4.2.5= 4.2.6= 4.2.7= 4.2.8= 4.2.9= 4.3.0= 4.3.1= 4.3.2= 4.3.3= 4.3.4= 4.3.5= 4.3.6= 4.4.0 |
The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "server signing = mandatory" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the client-server data stream.
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