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CVE-2020-14383

Publication date 29 October 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

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.

Status

Package Ubuntu Release Status
samba 21.04 hirsute
Fixed 2:4.12.5+dfsg-3ubuntu4.1
20.10 groovy
Fixed 2:4.12.5+dfsg-3ubuntu4.1
20.04 LTS focal
Fixed 2:4.11.6+dfsg-0ubuntu1.6
18.04 LTS bionic
Fixed 2:4.7.6+dfsg~ubuntu-0ubuntu2.21
16.04 LTS xenial
Fixed 2:4.3.11+dfsg-0ubuntu0.16.04.32
14.04 LTS trusty

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Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references