CVE-2016-0771

Publication date 8 March 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The internal DNS server in Samba 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4, when an AD DC is configured, allows remote authenticated users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from process memory by uploading a crafted DNS TXT record.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
samba	17.04 zesty	Fixed 2:4.3.6+dfsg-1ubuntu1
	16.10 yakkety	Fixed 2:4.3.6+dfsg-1ubuntu1
	16.04 LTS xenial	Fixed 2:4.3.6+dfsg-1ubuntu1
	15.10 wily	Fixed 2:4.1.17+dfsg-4ubuntu3.3
	14.04 LTS trusty	Fixed 2:4.1.6+dfsg-1ubuntu2.14.04.13
	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

4.0+ only

Severity score breakdown

Parameter	Value
Base score	5.9 · Medium
Attack vector	Network
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-2922-1
Samba vulnerabilities
8 March 2016