samba4 security update

2016-07-2611:29:16

CentOS Project

lists.centos.org

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.005 Low

EPSS

Percentile

76.3%

JSON

CentOS Errata and Security Advisory CESA-2016:1487

Samba is an open-source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information.

Security Fix(es):

A flaw was found in the way Samba initiated signed DCE/RPC connections. A man-in-the-middle attacker could use this flaw to downgrade the connection to not use signing and therefore impersonate the server. (CVE-2016-2119)

Red Hat would like to thank the Samba project for reporting this issue. Upstream acknowledges Stefan Metzmacher as the original reporter.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2016-July/084156.html

Affected packages:
samba4
samba4-client
samba4-common
samba4-dc
samba4-dc-libs
samba4-devel
samba4-libs
samba4-pidl
samba4-python
samba4-test
samba4-winbind
samba4-winbind-clients
samba4-winbind-krb5-locator

Upstream details at:
https://access.redhat.com/errata/RHSA-2016:1487

OSVersionArchitecturePackageVersionFilename
CentOS6i686samba4< 4.2.10-7.el6_8samba4-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-client< 4.2.10-7.el6_8samba4-client-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-common< 4.2.10-7.el6_8samba4-common-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-dc< 4.2.10-7.el6_8samba4-dc-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-dc-libs< 4.2.10-7.el6_8samba4-dc-libs-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-devel< 4.2.10-7.el6_8samba4-devel-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-libs< 4.2.10-7.el6_8samba4-libs-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-pidl< 4.2.10-7.el6_8samba4-pidl-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-python< 4.2.10-7.el6_8samba4-python-4.2.10-7.el6_8.i686.rpm
CentOS6i686samba4-test< 4.2.10-7.el6_8samba4-test-4.2.10-7.el6_8.i686.rpm

OS	Version	Architecture	Package	Version	Filename
CentOS	6	i686	samba4	< 4.2.10-7.el6_8	samba4-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-client	< 4.2.10-7.el6_8	samba4-client-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-common	< 4.2.10-7.el6_8	samba4-common-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-dc	< 4.2.10-7.el6_8	samba4-dc-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-dc-libs	< 4.2.10-7.el6_8	samba4-dc-libs-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-devel	< 4.2.10-7.el6_8	samba4-devel-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-libs	< 4.2.10-7.el6_8	samba4-libs-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-pidl	< 4.2.10-7.el6_8	samba4-pidl-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-python	< 4.2.10-7.el6_8	samba4-python-4.2.10-7.el6_8.i686.rpm
CentOS	6	i686	samba4-test	< 4.2.10-7.el6_8	samba4-test-4.2.10-7.el6_8.i686.rpm