CentOS ProjectCESA-2017:0744samba4 security update
6.5 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
0.007 Low
EPSS
Percentile
79.2%
CentOS Errata and Security Advisory CESA-2017:0744
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):
-
It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users. (CVE-2016-2125)
-
A flaw was found in the way Samba handled PAC (Privilege Attribute Certificate) checksums. A remote, authenticated attacker could use this flaw to crash the winbindd process. (CVE-2016-2126)
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9 Technical Notes linked from the References section.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2017-March/030198.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-2017:0744
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| CentOS | 6 | i686 | samba4 | < 4.2.10-9.el6 | samba4-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-client | < 4.2.10-9.el6 | samba4-client-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-common | < 4.2.10-9.el6 | samba4-common-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-dc | < 4.2.10-9.el6 | samba4-dc-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-dc-libs | < 4.2.10-9.el6 | samba4-dc-libs-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-devel | < 4.2.10-9.el6 | samba4-devel-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-libs | < 4.2.10-9.el6 | samba4-libs-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-pidl | < 4.2.10-9.el6 | samba4-pidl-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-python | < 4.2.10-9.el6 | samba4-python-4.2.10-9.el6.i686.rpm |
| CentOS | 6 | i686 | samba4-test | < 4.2.10-9.el6 | samba4-test-4.2.10-9.el6.i686.rpm |
Related
6.5 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
0.007 Low
EPSS
Percentile
79.2%