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CVE-2016-0771

Published: 8 March 2016

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.

Notes

AuthorNote
mdeslaur
4.0+ only

Priority

Medium

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
samba4
Launchpad, Ubuntu, Debian
upstream Needs triage

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

precise Ignored
(end of life)
trusty Does not exist

samba
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty
Released (2:4.1.6+dfsg-1ubuntu2.14.04.13)
upstream Needs triage

wily
Released (2:4.1.17+dfsg-4ubuntu3.3)
xenial
Released (2:4.3.6+dfsg-1ubuntu1)
yakkety
Released (2:4.3.6+dfsg-1ubuntu1)
zesty
Released (2:4.3.6+dfsg-1ubuntu1)

Severity score breakdown

Parameter Value
Base score 5.9
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