A samba security and bug fix update has been released for Red Hat Enterprise Linux 7.
RHSA-2021:2313-01: Moderate: samba security and bug fix update
=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: samba security and bug fix update
Advisory ID: RHSA-2021:2313-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2313
Issue date: 2021-06-08
CVE Names: CVE-2021-20254
=====================================================================
1. Summary:
An update for samba is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Resilient Storage (v. 7) - ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64
3. Description:
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: Negative idmap cache entries can cause incorrect group entries in
the Samba file server process token (CVE-2021-20254)
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):
* smb.service stops when samba rpms are updated (BZ#1930747)
* samba printing dumps core (BZ#1937867)
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing this update, the smb service will be restarted
automatically.
5. Bugs fixed ( https://bugzilla.redhat.com/):
1930747 - [RHEL7.9] smb.service stops when samba rpms are updated
1937867 - samba printing dumps core
1949442 - CVE-2021-20254 samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
samba-4.10.16-15.el7_9.src.rpm
noarch:
samba-common-4.10.16-15.el7_9.noarch.rpm
x86_64:
libsmbclient-4.10.16-15.el7_9.i686.rpm
libsmbclient-4.10.16-15.el7_9.x86_64.rpm
libwbclient-4.10.16-15.el7_9.i686.rpm
libwbclient-4.10.16-15.el7_9.x86_64.rpm
samba-client-4.10.16-15.el7_9.x86_64.rpm
samba-client-libs-4.10.16-15.el7_9.i686.rpm
samba-client-libs-4.10.16-15.el7_9.x86_64.rpm
samba-common-libs-4.10.16-15.el7_9.i686.rpm
samba-common-libs-4.10.16-15.el7_9.x86_64.rpm
samba-common-tools-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.i686.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
samba-krb5-printing-4.10.16-15.el7_9.x86_64.rpm
samba-libs-4.10.16-15.el7_9.i686.rpm
samba-libs-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-clients-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-modules-4.10.16-15.el7_9.i686.rpm
samba-winbind-modules-4.10.16-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch:
samba-pidl-4.10.16-15.el7_9.noarch.rpm
x86_64:
libsmbclient-devel-4.10.16-15.el7_9.i686.rpm
libsmbclient-devel-4.10.16-15.el7_9.x86_64.rpm
libwbclient-devel-4.10.16-15.el7_9.i686.rpm
libwbclient-devel-4.10.16-15.el7_9.x86_64.rpm
samba-4.10.16-15.el7_9.x86_64.rpm
samba-dc-4.10.16-15.el7_9.x86_64.rpm
samba-dc-libs-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.i686.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
samba-devel-4.10.16-15.el7_9.i686.rpm
samba-devel-4.10.16-15.el7_9.x86_64.rpm
samba-python-4.10.16-15.el7_9.i686.rpm
samba-python-4.10.16-15.el7_9.x86_64.rpm
samba-python-test-4.10.16-15.el7_9.x86_64.rpm
samba-test-4.10.16-15.el7_9.x86_64.rpm
samba-test-libs-4.10.16-15.el7_9.i686.rpm
samba-test-libs-4.10.16-15.el7_9.x86_64.rpm
samba-vfs-glusterfs-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-krb5-locator-4.10.16-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
samba-4.10.16-15.el7_9.src.rpm
noarch:
samba-common-4.10.16-15.el7_9.noarch.rpm
x86_64:
libsmbclient-4.10.16-15.el7_9.i686.rpm
libsmbclient-4.10.16-15.el7_9.x86_64.rpm
libwbclient-4.10.16-15.el7_9.i686.rpm
libwbclient-4.10.16-15.el7_9.x86_64.rpm
samba-client-4.10.16-15.el7_9.x86_64.rpm
samba-client-libs-4.10.16-15.el7_9.i686.rpm
samba-client-libs-4.10.16-15.el7_9.x86_64.rpm
samba-common-libs-4.10.16-15.el7_9.i686.rpm
samba-common-libs-4.10.16-15.el7_9.x86_64.rpm
samba-common-tools-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.i686.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
samba-libs-4.10.16-15.el7_9.i686.rpm
samba-libs-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-clients-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-modules-4.10.16-15.el7_9.i686.rpm
samba-winbind-modules-4.10.16-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
noarch:
samba-pidl-4.10.16-15.el7_9.noarch.rpm
x86_64:
libsmbclient-devel-4.10.16-15.el7_9.i686.rpm
libsmbclient-devel-4.10.16-15.el7_9.x86_64.rpm
libwbclient-devel-4.10.16-15.el7_9.i686.rpm
libwbclient-devel-4.10.16-15.el7_9.x86_64.rpm
samba-4.10.16-15.el7_9.x86_64.rpm
samba-dc-4.10.16-15.el7_9.x86_64.rpm
samba-dc-libs-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.i686.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
samba-devel-4.10.16-15.el7_9.i686.rpm
samba-devel-4.10.16-15.el7_9.x86_64.rpm
samba-krb5-printing-4.10.16-15.el7_9.x86_64.rpm
samba-python-4.10.16-15.el7_9.i686.rpm
samba-python-4.10.16-15.el7_9.x86_64.rpm
samba-python-test-4.10.16-15.el7_9.x86_64.rpm
samba-test-4.10.16-15.el7_9.x86_64.rpm
samba-test-libs-4.10.16-15.el7_9.i686.rpm
samba-test-libs-4.10.16-15.el7_9.x86_64.rpm
samba-vfs-glusterfs-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-krb5-locator-4.10.16-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
samba-4.10.16-15.el7_9.src.rpm
noarch:
samba-common-4.10.16-15.el7_9.noarch.rpm
ppc64:
libsmbclient-4.10.16-15.el7_9.ppc.rpm
libsmbclient-4.10.16-15.el7_9.ppc64.rpm
libwbclient-4.10.16-15.el7_9.ppc.rpm
libwbclient-4.10.16-15.el7_9.ppc64.rpm
samba-4.10.16-15.el7_9.ppc64.rpm
samba-client-4.10.16-15.el7_9.ppc64.rpm
samba-client-libs-4.10.16-15.el7_9.ppc.rpm
samba-client-libs-4.10.16-15.el7_9.ppc64.rpm
samba-common-libs-4.10.16-15.el7_9.ppc.rpm
samba-common-libs-4.10.16-15.el7_9.ppc64.rpm
samba-common-tools-4.10.16-15.el7_9.ppc64.rpm
samba-debuginfo-4.10.16-15.el7_9.ppc.rpm
samba-debuginfo-4.10.16-15.el7_9.ppc64.rpm
samba-krb5-printing-4.10.16-15.el7_9.ppc64.rpm
samba-libs-4.10.16-15.el7_9.ppc.rpm
samba-libs-4.10.16-15.el7_9.ppc64.rpm
samba-winbind-4.10.16-15.el7_9.ppc64.rpm
samba-winbind-clients-4.10.16-15.el7_9.ppc64.rpm
samba-winbind-modules-4.10.16-15.el7_9.ppc.rpm
samba-winbind-modules-4.10.16-15.el7_9.ppc64.rpm
ppc64le:
libsmbclient-4.10.16-15.el7_9.ppc64le.rpm
libwbclient-4.10.16-15.el7_9.ppc64le.rpm
samba-4.10.16-15.el7_9.ppc64le.rpm
samba-client-4.10.16-15.el7_9.ppc64le.rpm
samba-client-libs-4.10.16-15.el7_9.ppc64le.rpm
samba-common-libs-4.10.16-15.el7_9.ppc64le.rpm
samba-common-tools-4.10.16-15.el7_9.ppc64le.rpm
samba-debuginfo-4.10.16-15.el7_9.ppc64le.rpm
samba-krb5-printing-4.10.16-15.el7_9.ppc64le.rpm
samba-libs-4.10.16-15.el7_9.ppc64le.rpm
samba-winbind-4.10.16-15.el7_9.ppc64le.rpm
samba-winbind-clients-4.10.16-15.el7_9.ppc64le.rpm
samba-winbind-modules-4.10.16-15.el7_9.ppc64le.rpm
s390x:
libsmbclient-4.10.16-15.el7_9.s390.rpm
libsmbclient-4.10.16-15.el7_9.s390x.rpm
libwbclient-4.10.16-15.el7_9.s390.rpm
libwbclient-4.10.16-15.el7_9.s390x.rpm
samba-4.10.16-15.el7_9.s390x.rpm
samba-client-4.10.16-15.el7_9.s390x.rpm
samba-client-libs-4.10.16-15.el7_9.s390.rpm
samba-client-libs-4.10.16-15.el7_9.s390x.rpm
samba-common-libs-4.10.16-15.el7_9.s390.rpm
samba-common-libs-4.10.16-15.el7_9.s390x.rpm
samba-common-tools-4.10.16-15.el7_9.s390x.rpm
samba-debuginfo-4.10.16-15.el7_9.s390.rpm
samba-debuginfo-4.10.16-15.el7_9.s390x.rpm
samba-krb5-printing-4.10.16-15.el7_9.s390x.rpm
samba-libs-4.10.16-15.el7_9.s390.rpm
samba-libs-4.10.16-15.el7_9.s390x.rpm
samba-winbind-4.10.16-15.el7_9.s390x.rpm
samba-winbind-clients-4.10.16-15.el7_9.s390x.rpm
samba-winbind-modules-4.10.16-15.el7_9.s390.rpm
samba-winbind-modules-4.10.16-15.el7_9.s390x.rpm
x86_64:
libsmbclient-4.10.16-15.el7_9.i686.rpm
libsmbclient-4.10.16-15.el7_9.x86_64.rpm
libwbclient-4.10.16-15.el7_9.i686.rpm
libwbclient-4.10.16-15.el7_9.x86_64.rpm
samba-4.10.16-15.el7_9.x86_64.rpm
samba-client-4.10.16-15.el7_9.x86_64.rpm
samba-client-libs-4.10.16-15.el7_9.i686.rpm
samba-client-libs-4.10.16-15.el7_9.x86_64.rpm
samba-common-libs-4.10.16-15.el7_9.i686.rpm
samba-common-libs-4.10.16-15.el7_9.x86_64.rpm
samba-common-tools-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.i686.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
samba-krb5-printing-4.10.16-15.el7_9.x86_64.rpm
samba-libs-4.10.16-15.el7_9.i686.rpm
samba-libs-4.10.16-15.el7_9.x86_64.rpm
samba-python-4.10.16-15.el7_9.i686.rpm
samba-python-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-clients-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-modules-4.10.16-15.el7_9.i686.rpm
samba-winbind-modules-4.10.16-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server Resilient Storage (v. 7):
ppc64le:
ctdb-4.10.16-15.el7_9.ppc64le.rpm
ctdb-tests-4.10.16-15.el7_9.ppc64le.rpm
samba-debuginfo-4.10.16-15.el7_9.ppc64le.rpm
s390x:
ctdb-4.10.16-15.el7_9.s390x.rpm
ctdb-tests-4.10.16-15.el7_9.s390x.rpm
samba-debuginfo-4.10.16-15.el7_9.s390x.rpm
x86_64:
ctdb-4.10.16-15.el7_9.x86_64.rpm
ctdb-tests-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
noarch:
samba-pidl-4.10.16-15.el7_9.noarch.rpm
ppc64:
libsmbclient-devel-4.10.16-15.el7_9.ppc.rpm
libsmbclient-devel-4.10.16-15.el7_9.ppc64.rpm
libwbclient-devel-4.10.16-15.el7_9.ppc.rpm
libwbclient-devel-4.10.16-15.el7_9.ppc64.rpm
samba-dc-4.10.16-15.el7_9.ppc64.rpm
samba-dc-libs-4.10.16-15.el7_9.ppc64.rpm
samba-debuginfo-4.10.16-15.el7_9.ppc.rpm
samba-debuginfo-4.10.16-15.el7_9.ppc64.rpm
samba-devel-4.10.16-15.el7_9.ppc.rpm
samba-devel-4.10.16-15.el7_9.ppc64.rpm
samba-python-4.10.16-15.el7_9.ppc.rpm
samba-python-4.10.16-15.el7_9.ppc64.rpm
samba-python-test-4.10.16-15.el7_9.ppc64.rpm
samba-test-4.10.16-15.el7_9.ppc64.rpm
samba-test-libs-4.10.16-15.el7_9.ppc.rpm
samba-test-libs-4.10.16-15.el7_9.ppc64.rpm
samba-winbind-krb5-locator-4.10.16-15.el7_9.ppc64.rpm
ppc64le:
libsmbclient-devel-4.10.16-15.el7_9.ppc64le.rpm
libwbclient-devel-4.10.16-15.el7_9.ppc64le.rpm
samba-dc-4.10.16-15.el7_9.ppc64le.rpm
samba-dc-libs-4.10.16-15.el7_9.ppc64le.rpm
samba-debuginfo-4.10.16-15.el7_9.ppc64le.rpm
samba-devel-4.10.16-15.el7_9.ppc64le.rpm
samba-python-4.10.16-15.el7_9.ppc64le.rpm
samba-python-test-4.10.16-15.el7_9.ppc64le.rpm
samba-test-4.10.16-15.el7_9.ppc64le.rpm
samba-test-libs-4.10.16-15.el7_9.ppc64le.rpm
samba-winbind-krb5-locator-4.10.16-15.el7_9.ppc64le.rpm
s390x:
libsmbclient-devel-4.10.16-15.el7_9.s390.rpm
libsmbclient-devel-4.10.16-15.el7_9.s390x.rpm
libwbclient-devel-4.10.16-15.el7_9.s390.rpm
libwbclient-devel-4.10.16-15.el7_9.s390x.rpm
samba-dc-4.10.16-15.el7_9.s390x.rpm
samba-dc-libs-4.10.16-15.el7_9.s390x.rpm
samba-debuginfo-4.10.16-15.el7_9.s390.rpm
samba-debuginfo-4.10.16-15.el7_9.s390x.rpm
samba-devel-4.10.16-15.el7_9.s390.rpm
samba-devel-4.10.16-15.el7_9.s390x.rpm
samba-python-4.10.16-15.el7_9.s390.rpm
samba-python-4.10.16-15.el7_9.s390x.rpm
samba-python-test-4.10.16-15.el7_9.s390x.rpm
samba-test-4.10.16-15.el7_9.s390x.rpm
samba-test-libs-4.10.16-15.el7_9.s390.rpm
samba-test-libs-4.10.16-15.el7_9.s390x.rpm
samba-winbind-krb5-locator-4.10.16-15.el7_9.s390x.rpm
x86_64:
libsmbclient-devel-4.10.16-15.el7_9.i686.rpm
libsmbclient-devel-4.10.16-15.el7_9.x86_64.rpm
libwbclient-devel-4.10.16-15.el7_9.i686.rpm
libwbclient-devel-4.10.16-15.el7_9.x86_64.rpm
samba-dc-4.10.16-15.el7_9.x86_64.rpm
samba-dc-libs-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.i686.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
samba-devel-4.10.16-15.el7_9.i686.rpm
samba-devel-4.10.16-15.el7_9.x86_64.rpm
samba-python-test-4.10.16-15.el7_9.x86_64.rpm
samba-test-4.10.16-15.el7_9.x86_64.rpm
samba-test-libs-4.10.16-15.el7_9.i686.rpm
samba-test-libs-4.10.16-15.el7_9.x86_64.rpm
samba-vfs-glusterfs-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-krb5-locator-4.10.16-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
samba-4.10.16-15.el7_9.src.rpm
noarch:
samba-common-4.10.16-15.el7_9.noarch.rpm
x86_64:
libsmbclient-4.10.16-15.el7_9.i686.rpm
libsmbclient-4.10.16-15.el7_9.x86_64.rpm
libwbclient-4.10.16-15.el7_9.i686.rpm
libwbclient-4.10.16-15.el7_9.x86_64.rpm
samba-4.10.16-15.el7_9.x86_64.rpm
samba-client-4.10.16-15.el7_9.x86_64.rpm
samba-client-libs-4.10.16-15.el7_9.i686.rpm
samba-client-libs-4.10.16-15.el7_9.x86_64.rpm
samba-common-libs-4.10.16-15.el7_9.i686.rpm
samba-common-libs-4.10.16-15.el7_9.x86_64.rpm
samba-common-tools-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.i686.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
samba-krb5-printing-4.10.16-15.el7_9.x86_64.rpm
samba-libs-4.10.16-15.el7_9.i686.rpm
samba-libs-4.10.16-15.el7_9.x86_64.rpm
samba-python-4.10.16-15.el7_9.i686.rpm
samba-python-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-clients-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-modules-4.10.16-15.el7_9.i686.rpm
samba-winbind-modules-4.10.16-15.el7_9.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
noarch:
samba-pidl-4.10.16-15.el7_9.noarch.rpm
x86_64:
libsmbclient-devel-4.10.16-15.el7_9.i686.rpm
libsmbclient-devel-4.10.16-15.el7_9.x86_64.rpm
libwbclient-devel-4.10.16-15.el7_9.i686.rpm
libwbclient-devel-4.10.16-15.el7_9.x86_64.rpm
samba-dc-4.10.16-15.el7_9.x86_64.rpm
samba-dc-libs-4.10.16-15.el7_9.x86_64.rpm
samba-debuginfo-4.10.16-15.el7_9.i686.rpm
samba-debuginfo-4.10.16-15.el7_9.x86_64.rpm
samba-devel-4.10.16-15.el7_9.i686.rpm
samba-devel-4.10.16-15.el7_9.x86_64.rpm
samba-python-test-4.10.16-15.el7_9.x86_64.rpm
samba-test-4.10.16-15.el7_9.x86_64.rpm
samba-test-libs-4.10.16-15.el7_9.i686.rpm
samba-test-libs-4.10.16-15.el7_9.x86_64.rpm
samba-vfs-glusterfs-4.10.16-15.el7_9.x86_64.rpm
samba-winbind-krb5-locator-4.10.16-15.el7_9.x86_64.rpm
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7. References:
https://access.redhat.com/security/cve/CVE-2021-20254
https://access.redhat.com/security/updates/classification/#moderate
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