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CVE-2020-14383

Published: 29 October 2020

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.

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
samba
Launchpad, Ubuntu, Debian
bionic
Released (2:4.7.6+dfsg~ubuntu-0ubuntu2.21)
focal
Released (2:4.11.6+dfsg-0ubuntu1.6)
groovy
Released (2:4.12.5+dfsg-3ubuntu4.1)
hirsute
Released (2:4.12.5+dfsg-3ubuntu4.1)
precise Not vulnerable

trusty
Released (2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11)
upstream
Released (4.11.15,4.12.9,4.13.1)
xenial
Released (2:4.3.11+dfsg-0ubuntu0.16.04.32)