- Vulnerability/
- RHSA-2021:5082
13/12/2021
11/2/2025
RHSA-2021:5082: Important: samba security update
First published: Mon 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.<br>Security Fix(es):<br><li> samba: Active Directory (AD) domain user could become root on domain members (CVE-2020-25717)</li> <li> samba: SMB1 client connections can be downgraded to plaintext authentication (CVE-2016-2124)</li> <li> samba: Subsequent DCE/RPC fragment injection vulnerability (CVE-2021-23192)</li> 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 | Affected Version | How to fix |
|---|---|---|
| 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 |
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Reference Links
Frequently Asked Questions
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.
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.
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.
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.
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.
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