RHSA-2021:5082: Important: samba security update
Published Dec 13, 2021
·Updated
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: Active Directory (AD) domain user could become root on domain members (CVE-2020-25717) samba: SMB1 client connections can be downgraded to plaintext authentication (CVE-2016-2124) samba: Subsequent DCE/RPC fragment injection vulnerability (CVE-2021-23192) 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.
Affected Software
168 affected componentsFixes available
redhat/samba<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/ctdb<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/ctdb-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/ctdb-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba-test<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-tools<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-tools-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-tools-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-debugsource<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-debugsource<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-krb5-printing<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-krb5-printing-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-krb5-printing-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-pidl<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-vfs-iouring<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-vfs-iouring-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-clients<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-clients-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-clients-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-krb5-locator<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-krb5-locator-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-krb5-locator-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-modules<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-modules<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-modules-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-modules-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winexe<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winexe-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/ctdb<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba-test<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-tools<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-krb5-printing<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-vfs-iouring<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-vfs-iouring-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-clients<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-krb5-locator<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/ctdb<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/ctdb-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/python3-samba-test<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-client-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-tools<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-common-tools-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-debugsource<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-krb5-printing<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-krb5-printing-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-libs<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-test-libs-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-vfs-iouring<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-vfs-iouring-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-clients<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-clients-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-krb5-locator<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-krb5-locator-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-modules<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-winbind-modules-debuginfo<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/ctdb<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/ctdb-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/libsmbclient<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/libsmbclient-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/libwbclient<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/libwbclient-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/python3-samba<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/python3-samba-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/python3-samba-test<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-client<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-client-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-client-libs<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-client-libs-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-common-libs<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-common-libs-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-common-tools<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-common-tools-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-debugsource<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-krb5-printing<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-krb5-printing-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-libs<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-libs-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-test<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-test-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-test-libs<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-test-libs-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-vfs-iouring<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-vfs-iouring-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-winbind<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-winbind-clients<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-winbind-clients-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-winbind-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-winbind-krb5-locator<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-winbind-krb5-locator-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-winbind-modules<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-winbind-modules-debuginfo<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/libsmbclient-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libwbclient-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/samba-devel<4.14.5-7.el8_5
4.14.5-7.el8_5
redhat/libsmbclient-devel<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/libwbclient-devel<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
redhat/samba-devel<4.14.5-7.el8_5.aa
4.14.5-7.el8_5.aa
Remediation
Event History
May 30, 2026
Advisory Published
via Red Hat·07:57 PM
Data Sourced
via Red Hat·07:57 PM
RemedyDescriptionAffected Software
Frequently Asked Questions
1
What security issues does RHSA-2021:5082 address?
RHSA-2021:5082 addresses vulnerabilities in the Samba package, specifically related to Active Directory and other security risks that could impact file sharing and other services.
2
What is the first step to fix vulnerabilities outlined in RHSA-2021:5082?
To fix vulnerabilities outlined in RHSA-2021:5082, you should update the Samba package to version 4.14.5-7.el8_5 or later.
3
Which packages are affected by RHSA-2021:5082?
The packages affected by RHSA-2021:5082 include samba, ctdb, libsmbclient, and their associated debug and client libraries.
4
Is it necessary to restart services after applying the RHSA-2021:5082 update?
Yes, it is generally recommended to restart the Samba services after applying the RHSA-2021:5082 update to ensure changes take effect.
5
What operating systems are impacted by RHSA-2021:5082?
RHSA-2021:5082 impacts Red Hat Enterprise Linux 8 systems that utilize Samba for file sharing and related functionalities.