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CVE-2019-14907

MEDIUM6.5JSON exportCreate alert

Description

All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).

CVSS breakdown

CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected products

  • Red Hat / sambaAll versions 4.11.x before 4.11.5 – All versions 4.11.x before 4.11.5
  • Red Hat / sambaAll versions 4.10.x before 4.10.12 – All versions 4.10.x before 4.10.12
  • Red Hat / sambaAll versions 4.9.x before 4.9.18 – All versions 4.9.x before 4.9.18

References