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CVE-2020-10704

Published: 28 April 2020

A flaw was found when using samba as an Active Directory Domain Controller. Due to the way samba handles certain requests as an Active Directory Domain Controller LDAP server, an unauthorized user can cause a stack overflow leading to a denial of service. The highest threat from this vulnerability is to system availability. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
samba
Launchpad, Ubuntu, Debian
bionic
Released (2:4.7.6+dfsg~ubuntu-0ubuntu2.16)
eoan
Released (2:4.10.7+dfsg-0ubuntu2.5)
focal
Released (2:4.11.6+dfsg-0ubuntu1.1)
trusty
Released (2:4.3.11+dfsg-0ubuntu0.14.04.20+esm6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (4.10.15,4.11.8,4.12.2)
xenial
Released (2:4.3.11+dfsg-0ubuntu0.16.04.26)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H