CVE-2019-14907

MEDIUM
6.5
CVSS Score
Published: January 21, 2020 at 12:00 AM UTC
Updated: June 17, 2026 at 02:19 AM UTC
10 products affected across 6 vendorsDebian LinuxFedoraUbuntu Linux

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Severity
MEDIUM6.5
Exploit prediction
EPSS 3%

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.10.12v < 4.11.5v < 4.9.184.10.0 ≤ v < 4.10.124.11.0 ≤ v < 4.11.54.9.0 ≤ v < 4.9.18
Affected range stops below 4.10.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.11.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.18, so it looks safe — our inference, not a vendor statement
All versions

CVSS

6.5MEDIUMredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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