CVE-2016-2113

Publication date 12 April 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not verify X.509 certificates from TLS servers, which allows man-in-the-middle attackers to spoof LDAPS and HTTPS servers and obtain sensitive information via a crafted certificate.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
samba	17.04 zesty	Fixed 2:4.3.8+dfsg-0ubuntu1
	16.10 yakkety	Fixed 2:4.3.8+dfsg-0ubuntu1
	16.04 LTS xenial	Fixed 2:4.3.8+dfsg-0ubuntu1
	15.10 wily	Fixed 2:4.3.8+dfsg-0ubuntu0.15.10.2
	14.04 LTS trusty	Fixed 2:4.3.8+dfsg-0ubuntu0.14.04.2
	12.04 LTS precise	Not affected
samba4	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	15.10 wily	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life

Notes

mdeslaur

4.x+ only

Severity score breakdown

Parameter	Value
Base score	7.4 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References

Related Ubuntu Security Notices (USN)

USN-2950-1
Samba vulnerabilities
18 April 2016