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CVE-2020-14383

MEDIUM
6.5
CVSS Score
Published: December 2, 2020 at 12:00 AM UTC
Updated: June 17, 2026 at 02:54 AM UTC
2 products affected across 2 vendorsEnterprise LinuxSAMBA

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.

Affected

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

Enterprise Linux· Red Hatrpm
95%
8.0
SAMBA· Samba
95%
4.0.0 ≤ v < 4.11.154.12.0 ≤ v < 4.12.94.13.0 ≤ v < 4.13.14.11.154.12.94.13.1
Affected range stops below 4.11.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.12.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.13.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Issue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1892636
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202012-24
Vendor Advisory
Source: [email protected]
https://www.samba.org/samba/security/CVE-2020-14383.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-391NVD-CWE-Other

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