CentOS ProjectCESA-2020:5439ctdb, libsmbclient, libwbclient, samba security update
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.451 Medium
EPSS
Percentile
97.4%
CentOS Errata and Security Advisory CESA-2020:5439
Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.
Security Fix(es):
-
samba: Netlogon elevation of privilege vulnerability (Zerologon) (CVE-2020-1472)
-
samba: Missing handle permissions check in SMB1/2/3 ChangeNotify (CVE-2020-14318)
-
samba: Unprivileged user can crash winbind (CVE-2020-14323)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
-
The ‘require_membership_of’ documentation in pam_winbind manpage is incorrect (BZ#1853272)
-
Malfunctioning %U substitution in valid users option (BZ#1868917)
-
Regression: smbd and nmbd are restarted when samba-winbind package is upgraded (BZ#1878205)
-
winbindd memory leak on wbinfo -u with security=ADS (BZ#1892313)
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2020-December/086008.html
Affected packages:
ctdb
ctdb-tests
libsmbclient
libsmbclient-devel
libwbclient
libwbclient-devel
samba
samba-client
samba-client-libs
samba-common
samba-common-libs
samba-common-tools
samba-dc
samba-dc-libs
samba-devel
samba-krb5-printing
samba-libs
samba-pidl
samba-python
samba-python-test
samba-test
samba-test-libs
samba-vfs-glusterfs
samba-winbind
samba-winbind-clients
samba-winbind-krb5-locator
samba-winbind-modules
Upstream details at:
https://access.redhat.com/errata/RHSA-2020:5439
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| CentOS | 7 | x86_64 | ctdb | < 4.10.16-9.el7_9 | ctdb-4.10.16-9.el7_9.x86_64.rpm |
| CentOS | 7 | x86_64 | ctdb-tests | < 4.10.16-9.el7_9 | ctdb-tests-4.10.16-9.el7_9.x86_64.rpm |
| CentOS | 7 | i686 | libsmbclient | < 4.10.16-9.el7_9 | libsmbclient-4.10.16-9.el7_9.i686.rpm |
| CentOS | 7 | x86_64 | libsmbclient | < 4.10.16-9.el7_9 | libsmbclient-4.10.16-9.el7_9.x86_64.rpm |
| CentOS | 7 | i686 | libsmbclient-devel | < 4.10.16-9.el7_9 | libsmbclient-devel-4.10.16-9.el7_9.i686.rpm |
| CentOS | 7 | x86_64 | libsmbclient-devel | < 4.10.16-9.el7_9 | libsmbclient-devel-4.10.16-9.el7_9.x86_64.rpm |
| CentOS | 7 | i686 | libwbclient | < 4.10.16-9.el7_9 | libwbclient-4.10.16-9.el7_9.i686.rpm |
| CentOS | 7 | x86_64 | libwbclient | < 4.10.16-9.el7_9 | libwbclient-4.10.16-9.el7_9.x86_64.rpm |
| CentOS | 7 | i686 | libwbclient-devel | < 4.10.16-9.el7_9 | libwbclient-devel-4.10.16-9.el7_9.i686.rpm |
| CentOS | 7 | x86_64 | libwbclient-devel | < 4.10.16-9.el7_9 | libwbclient-devel-4.10.16-9.el7_9.x86_64.rpm |
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.451 Medium
EPSS
Percentile
97.4%