CVE-2019-14902

Publication date 21 January 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

There is an issue in all samba 4.11.x versions before 4.11.5, all samba 4.10.x versions before 4.10.12 and all samba 4.9.x versions before 4.9.18, where the removal of the right to create or modify a subtree would not automatically be taken away on all domain controllers.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
samba	24.04 LTS noble	Fixed 2:4.11.5+dfsg-1ubuntu1
	23.10 mantic	Fixed 2:4.11.5+dfsg-1ubuntu1
	23.04 lunar	Fixed 2:4.11.5+dfsg-1ubuntu1
	22.10 kinetic	Fixed 2:4.11.5+dfsg-1ubuntu1
	22.04 LTS jammy	Fixed 2:4.11.5+dfsg-1ubuntu1
	21.10 impish	Fixed 2:4.11.5+dfsg-1ubuntu1
	21.04 hirsute	Fixed 2:4.11.5+dfsg-1ubuntu1
	20.10 groovy	Fixed 2:4.11.5+dfsg-1ubuntu1
	20.04 LTS focal	Fixed 2:4.11.5+dfsg-1ubuntu1
	19.10 eoan	Fixed 2:4.10.7+dfsg-0ubuntu2.4
	19.04 disco	Fixed 2:4.10.0+dfsg-0ubuntu2.8
	18.04 LTS bionic	Fixed 2:4.7.6+dfsg~ubuntu-0ubuntu2.15
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Vulnerable

Notes

mdeslaur

difficult and risky backport to 4.3 in xenial. Workaround: Use of 'samba-tool drs replicate $DC1 $DC2 $NC --full-sync' will cause all ACLs to be syncronised from DC2 to DC1, for the given NC (naming context)

Severity score breakdown

Parameter	Value
Base score	5.4 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-4244-1
Samba vulnerabilities
21 January 2020