-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: samba security and bug fix update Advisory ID: RHSA-2021:5192-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:5192 Issue date: 2021-12-16 CVE Names: CVE-2016-2124 CVE-2020-25717 ==================================================================== 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 Important. 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: 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) 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): * Backport IDL changes to harden Kerberos communication (BZ#2021428) 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/): 2019660 - CVE-2016-2124 samba: SMB1 client connections can be downgraded to plaintext authentication 2019672 - CVE-2020-25717 samba: Active Directory (AD) domain user could become root on domain members 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: samba-4.10.16-17.el7_9.src.rpm noarch: samba-common-4.10.16-17.el7_9.noarch.rpm x86_64: libsmbclient-4.10.16-17.el7_9.i686.rpm libsmbclient-4.10.16-17.el7_9.x86_64.rpm libwbclient-4.10.16-17.el7_9.i686.rpm libwbclient-4.10.16-17.el7_9.x86_64.rpm samba-client-4.10.16-17.el7_9.x86_64.rpm samba-client-libs-4.10.16-17.el7_9.i686.rpm samba-client-libs-4.10.16-17.el7_9.x86_64.rpm samba-common-libs-4.10.16-17.el7_9.i686.rpm samba-common-libs-4.10.16-17.el7_9.x86_64.rpm samba-common-tools-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.i686.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm samba-krb5-printing-4.10.16-17.el7_9.x86_64.rpm samba-libs-4.10.16-17.el7_9.i686.rpm samba-libs-4.10.16-17.el7_9.x86_64.rpm samba-winbind-4.10.16-17.el7_9.x86_64.rpm samba-winbind-clients-4.10.16-17.el7_9.x86_64.rpm samba-winbind-modules-4.10.16-17.el7_9.i686.rpm samba-winbind-modules-4.10.16-17.el7_9.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: samba-pidl-4.10.16-17.el7_9.noarch.rpm x86_64: libsmbclient-devel-4.10.16-17.el7_9.i686.rpm libsmbclient-devel-4.10.16-17.el7_9.x86_64.rpm libwbclient-devel-4.10.16-17.el7_9.i686.rpm libwbclient-devel-4.10.16-17.el7_9.x86_64.rpm samba-4.10.16-17.el7_9.x86_64.rpm samba-dc-4.10.16-17.el7_9.x86_64.rpm samba-dc-libs-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.i686.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm samba-devel-4.10.16-17.el7_9.i686.rpm samba-devel-4.10.16-17.el7_9.x86_64.rpm samba-python-4.10.16-17.el7_9.i686.rpm samba-python-4.10.16-17.el7_9.x86_64.rpm samba-python-test-4.10.16-17.el7_9.x86_64.rpm samba-test-4.10.16-17.el7_9.x86_64.rpm samba-test-libs-4.10.16-17.el7_9.i686.rpm samba-test-libs-4.10.16-17.el7_9.x86_64.rpm samba-vfs-glusterfs-4.10.16-17.el7_9.x86_64.rpm samba-winbind-krb5-locator-4.10.16-17.el7_9.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: samba-4.10.16-17.el7_9.src.rpm noarch: samba-common-4.10.16-17.el7_9.noarch.rpm x86_64: libsmbclient-4.10.16-17.el7_9.i686.rpm libsmbclient-4.10.16-17.el7_9.x86_64.rpm libwbclient-4.10.16-17.el7_9.i686.rpm libwbclient-4.10.16-17.el7_9.x86_64.rpm samba-client-4.10.16-17.el7_9.x86_64.rpm samba-client-libs-4.10.16-17.el7_9.i686.rpm samba-client-libs-4.10.16-17.el7_9.x86_64.rpm samba-common-libs-4.10.16-17.el7_9.i686.rpm samba-common-libs-4.10.16-17.el7_9.x86_64.rpm samba-common-tools-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.i686.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm samba-libs-4.10.16-17.el7_9.i686.rpm samba-libs-4.10.16-17.el7_9.x86_64.rpm samba-winbind-4.10.16-17.el7_9.x86_64.rpm samba-winbind-clients-4.10.16-17.el7_9.x86_64.rpm samba-winbind-modules-4.10.16-17.el7_9.i686.rpm samba-winbind-modules-4.10.16-17.el7_9.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): noarch: samba-pidl-4.10.16-17.el7_9.noarch.rpm x86_64: libsmbclient-devel-4.10.16-17.el7_9.i686.rpm libsmbclient-devel-4.10.16-17.el7_9.x86_64.rpm libwbclient-devel-4.10.16-17.el7_9.i686.rpm libwbclient-devel-4.10.16-17.el7_9.x86_64.rpm samba-4.10.16-17.el7_9.x86_64.rpm samba-dc-4.10.16-17.el7_9.x86_64.rpm samba-dc-libs-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.i686.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm samba-devel-4.10.16-17.el7_9.i686.rpm samba-devel-4.10.16-17.el7_9.x86_64.rpm samba-krb5-printing-4.10.16-17.el7_9.x86_64.rpm samba-python-4.10.16-17.el7_9.i686.rpm samba-python-4.10.16-17.el7_9.x86_64.rpm samba-python-test-4.10.16-17.el7_9.x86_64.rpm samba-test-4.10.16-17.el7_9.x86_64.rpm samba-test-libs-4.10.16-17.el7_9.i686.rpm samba-test-libs-4.10.16-17.el7_9.x86_64.rpm samba-vfs-glusterfs-4.10.16-17.el7_9.x86_64.rpm samba-winbind-krb5-locator-4.10.16-17.el7_9.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: samba-4.10.16-17.el7_9.src.rpm noarch: samba-common-4.10.16-17.el7_9.noarch.rpm ppc64: libsmbclient-4.10.16-17.el7_9.ppc.rpm libsmbclient-4.10.16-17.el7_9.ppc64.rpm libwbclient-4.10.16-17.el7_9.ppc.rpm libwbclient-4.10.16-17.el7_9.ppc64.rpm samba-4.10.16-17.el7_9.ppc64.rpm samba-client-4.10.16-17.el7_9.ppc64.rpm samba-client-libs-4.10.16-17.el7_9.ppc.rpm samba-client-libs-4.10.16-17.el7_9.ppc64.rpm samba-common-libs-4.10.16-17.el7_9.ppc.rpm samba-common-libs-4.10.16-17.el7_9.ppc64.rpm samba-common-tools-4.10.16-17.el7_9.ppc64.rpm samba-debuginfo-4.10.16-17.el7_9.ppc.rpm samba-debuginfo-4.10.16-17.el7_9.ppc64.rpm samba-krb5-printing-4.10.16-17.el7_9.ppc64.rpm samba-libs-4.10.16-17.el7_9.ppc.rpm samba-libs-4.10.16-17.el7_9.ppc64.rpm samba-winbind-4.10.16-17.el7_9.ppc64.rpm samba-winbind-clients-4.10.16-17.el7_9.ppc64.rpm samba-winbind-modules-4.10.16-17.el7_9.ppc.rpm samba-winbind-modules-4.10.16-17.el7_9.ppc64.rpm ppc64le: libsmbclient-4.10.16-17.el7_9.ppc64le.rpm libwbclient-4.10.16-17.el7_9.ppc64le.rpm samba-4.10.16-17.el7_9.ppc64le.rpm samba-client-4.10.16-17.el7_9.ppc64le.rpm samba-client-libs-4.10.16-17.el7_9.ppc64le.rpm samba-common-libs-4.10.16-17.el7_9.ppc64le.rpm samba-common-tools-4.10.16-17.el7_9.ppc64le.rpm samba-debuginfo-4.10.16-17.el7_9.ppc64le.rpm samba-krb5-printing-4.10.16-17.el7_9.ppc64le.rpm samba-libs-4.10.16-17.el7_9.ppc64le.rpm samba-winbind-4.10.16-17.el7_9.ppc64le.rpm samba-winbind-clients-4.10.16-17.el7_9.ppc64le.rpm samba-winbind-modules-4.10.16-17.el7_9.ppc64le.rpm s390x: libsmbclient-4.10.16-17.el7_9.s390.rpm libsmbclient-4.10.16-17.el7_9.s390x.rpm libwbclient-4.10.16-17.el7_9.s390.rpm libwbclient-4.10.16-17.el7_9.s390x.rpm samba-4.10.16-17.el7_9.s390x.rpm samba-client-4.10.16-17.el7_9.s390x.rpm samba-client-libs-4.10.16-17.el7_9.s390.rpm samba-client-libs-4.10.16-17.el7_9.s390x.rpm samba-common-libs-4.10.16-17.el7_9.s390.rpm samba-common-libs-4.10.16-17.el7_9.s390x.rpm samba-common-tools-4.10.16-17.el7_9.s390x.rpm samba-debuginfo-4.10.16-17.el7_9.s390.rpm samba-debuginfo-4.10.16-17.el7_9.s390x.rpm samba-krb5-printing-4.10.16-17.el7_9.s390x.rpm samba-libs-4.10.16-17.el7_9.s390.rpm samba-libs-4.10.16-17.el7_9.s390x.rpm samba-winbind-4.10.16-17.el7_9.s390x.rpm samba-winbind-clients-4.10.16-17.el7_9.s390x.rpm samba-winbind-modules-4.10.16-17.el7_9.s390.rpm samba-winbind-modules-4.10.16-17.el7_9.s390x.rpm x86_64: libsmbclient-4.10.16-17.el7_9.i686.rpm libsmbclient-4.10.16-17.el7_9.x86_64.rpm libwbclient-4.10.16-17.el7_9.i686.rpm libwbclient-4.10.16-17.el7_9.x86_64.rpm samba-4.10.16-17.el7_9.x86_64.rpm samba-client-4.10.16-17.el7_9.x86_64.rpm samba-client-libs-4.10.16-17.el7_9.i686.rpm samba-client-libs-4.10.16-17.el7_9.x86_64.rpm samba-common-libs-4.10.16-17.el7_9.i686.rpm samba-common-libs-4.10.16-17.el7_9.x86_64.rpm samba-common-tools-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.i686.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm samba-krb5-printing-4.10.16-17.el7_9.x86_64.rpm samba-libs-4.10.16-17.el7_9.i686.rpm samba-libs-4.10.16-17.el7_9.x86_64.rpm samba-python-4.10.16-17.el7_9.i686.rpm samba-python-4.10.16-17.el7_9.x86_64.rpm samba-winbind-4.10.16-17.el7_9.x86_64.rpm samba-winbind-clients-4.10.16-17.el7_9.x86_64.rpm samba-winbind-modules-4.10.16-17.el7_9.i686.rpm samba-winbind-modules-4.10.16-17.el7_9.x86_64.rpm Red Hat Enterprise Linux Server Resilient Storage (v. 7): ppc64le: ctdb-4.10.16-17.el7_9.ppc64le.rpm ctdb-tests-4.10.16-17.el7_9.ppc64le.rpm samba-debuginfo-4.10.16-17.el7_9.ppc64le.rpm s390x: ctdb-4.10.16-17.el7_9.s390x.rpm ctdb-tests-4.10.16-17.el7_9.s390x.rpm samba-debuginfo-4.10.16-17.el7_9.s390x.rpm x86_64: ctdb-4.10.16-17.el7_9.x86_64.rpm ctdb-tests-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: samba-pidl-4.10.16-17.el7_9.noarch.rpm ppc64: libsmbclient-devel-4.10.16-17.el7_9.ppc.rpm libsmbclient-devel-4.10.16-17.el7_9.ppc64.rpm libwbclient-devel-4.10.16-17.el7_9.ppc.rpm libwbclient-devel-4.10.16-17.el7_9.ppc64.rpm samba-dc-4.10.16-17.el7_9.ppc64.rpm samba-dc-libs-4.10.16-17.el7_9.ppc64.rpm samba-debuginfo-4.10.16-17.el7_9.ppc.rpm samba-debuginfo-4.10.16-17.el7_9.ppc64.rpm samba-devel-4.10.16-17.el7_9.ppc.rpm samba-devel-4.10.16-17.el7_9.ppc64.rpm samba-python-4.10.16-17.el7_9.ppc.rpm samba-python-4.10.16-17.el7_9.ppc64.rpm samba-python-test-4.10.16-17.el7_9.ppc64.rpm samba-test-4.10.16-17.el7_9.ppc64.rpm samba-test-libs-4.10.16-17.el7_9.ppc.rpm samba-test-libs-4.10.16-17.el7_9.ppc64.rpm samba-winbind-krb5-locator-4.10.16-17.el7_9.ppc64.rpm ppc64le: libsmbclient-devel-4.10.16-17.el7_9.ppc64le.rpm libwbclient-devel-4.10.16-17.el7_9.ppc64le.rpm samba-dc-4.10.16-17.el7_9.ppc64le.rpm samba-dc-libs-4.10.16-17.el7_9.ppc64le.rpm samba-debuginfo-4.10.16-17.el7_9.ppc64le.rpm samba-devel-4.10.16-17.el7_9.ppc64le.rpm samba-python-4.10.16-17.el7_9.ppc64le.rpm samba-python-test-4.10.16-17.el7_9.ppc64le.rpm samba-test-4.10.16-17.el7_9.ppc64le.rpm samba-test-libs-4.10.16-17.el7_9.ppc64le.rpm samba-winbind-krb5-locator-4.10.16-17.el7_9.ppc64le.rpm s390x: libsmbclient-devel-4.10.16-17.el7_9.s390.rpm libsmbclient-devel-4.10.16-17.el7_9.s390x.rpm libwbclient-devel-4.10.16-17.el7_9.s390.rpm libwbclient-devel-4.10.16-17.el7_9.s390x.rpm samba-dc-4.10.16-17.el7_9.s390x.rpm samba-dc-libs-4.10.16-17.el7_9.s390x.rpm samba-debuginfo-4.10.16-17.el7_9.s390.rpm samba-debuginfo-4.10.16-17.el7_9.s390x.rpm samba-devel-4.10.16-17.el7_9.s390.rpm samba-devel-4.10.16-17.el7_9.s390x.rpm samba-python-4.10.16-17.el7_9.s390.rpm samba-python-4.10.16-17.el7_9.s390x.rpm samba-python-test-4.10.16-17.el7_9.s390x.rpm samba-test-4.10.16-17.el7_9.s390x.rpm samba-test-libs-4.10.16-17.el7_9.s390.rpm samba-test-libs-4.10.16-17.el7_9.s390x.rpm samba-winbind-krb5-locator-4.10.16-17.el7_9.s390x.rpm x86_64: libsmbclient-devel-4.10.16-17.el7_9.i686.rpm libsmbclient-devel-4.10.16-17.el7_9.x86_64.rpm libwbclient-devel-4.10.16-17.el7_9.i686.rpm libwbclient-devel-4.10.16-17.el7_9.x86_64.rpm samba-dc-4.10.16-17.el7_9.x86_64.rpm samba-dc-libs-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.i686.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm samba-devel-4.10.16-17.el7_9.i686.rpm samba-devel-4.10.16-17.el7_9.x86_64.rpm samba-python-test-4.10.16-17.el7_9.x86_64.rpm samba-test-4.10.16-17.el7_9.x86_64.rpm samba-test-libs-4.10.16-17.el7_9.i686.rpm samba-test-libs-4.10.16-17.el7_9.x86_64.rpm samba-vfs-glusterfs-4.10.16-17.el7_9.x86_64.rpm samba-winbind-krb5-locator-4.10.16-17.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: samba-4.10.16-17.el7_9.src.rpm noarch: samba-common-4.10.16-17.el7_9.noarch.rpm x86_64: libsmbclient-4.10.16-17.el7_9.i686.rpm libsmbclient-4.10.16-17.el7_9.x86_64.rpm libwbclient-4.10.16-17.el7_9.i686.rpm libwbclient-4.10.16-17.el7_9.x86_64.rpm samba-4.10.16-17.el7_9.x86_64.rpm samba-client-4.10.16-17.el7_9.x86_64.rpm samba-client-libs-4.10.16-17.el7_9.i686.rpm samba-client-libs-4.10.16-17.el7_9.x86_64.rpm samba-common-libs-4.10.16-17.el7_9.i686.rpm samba-common-libs-4.10.16-17.el7_9.x86_64.rpm samba-common-tools-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.i686.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm samba-krb5-printing-4.10.16-17.el7_9.x86_64.rpm samba-libs-4.10.16-17.el7_9.i686.rpm samba-libs-4.10.16-17.el7_9.x86_64.rpm samba-python-4.10.16-17.el7_9.i686.rpm samba-python-4.10.16-17.el7_9.x86_64.rpm samba-winbind-4.10.16-17.el7_9.x86_64.rpm samba-winbind-clients-4.10.16-17.el7_9.x86_64.rpm samba-winbind-modules-4.10.16-17.el7_9.i686.rpm samba-winbind-modules-4.10.16-17.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): noarch: samba-pidl-4.10.16-17.el7_9.noarch.rpm x86_64: libsmbclient-devel-4.10.16-17.el7_9.i686.rpm libsmbclient-devel-4.10.16-17.el7_9.x86_64.rpm libwbclient-devel-4.10.16-17.el7_9.i686.rpm libwbclient-devel-4.10.16-17.el7_9.x86_64.rpm samba-dc-4.10.16-17.el7_9.x86_64.rpm samba-dc-libs-4.10.16-17.el7_9.x86_64.rpm samba-debuginfo-4.10.16-17.el7_9.i686.rpm samba-debuginfo-4.10.16-17.el7_9.x86_64.rpm samba-devel-4.10.16-17.el7_9.i686.rpm samba-devel-4.10.16-17.el7_9.x86_64.rpm samba-python-test-4.10.16-17.el7_9.x86_64.rpm samba-test-4.10.16-17.el7_9.x86_64.rpm samba-test-libs-4.10.16-17.el7_9.i686.rpm samba-test-libs-4.10.16-17.el7_9.x86_64.rpm samba-vfs-glusterfs-4.10.16-17.el7_9.x86_64.rpm samba-winbind-krb5-locator-4.10.16-17.el7_9.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2016-2124 https://access.redhat.com/security/cve/CVE-2020-25717 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYbuXg9zjgjWX9erEAQhGcQ//ZftWmiOarhBdKFrYRes/PJkpPFEQ3JSw OC2hVlL6UaXEyW8LYpaU/r1jwOXlsNe2a0D9FzOf4qjzSKb2sAo8tlutldqTnb4Y uwwZSWNhELQOaiNSdADeSGGPQDxAIrFQ1xtYkU6q9tWQ0r2Q8Dd/T8kKMpWODAos 9SZlexohzPKFqc6cW6u4egi6tfnhaJCWpP+vhJA6oY7OrqqaIrm1525skjhuFGbp maLjW0MujJJZjaxybAeA/CtAScV/OgFyU7bJTbRI1kh14n6uBX7uhwqlrLdkbp7q OktL7uULh5BNsAR19xFmJsnWWZDDtGgXJ8UHi1N4dJWzh7KpiKpebGBgJzqUcAfQ JK54SyRPTSPINlHfSzrr3eX4qAUabJ9Y6lFAYL+xXXMUWhwk/7OTnjEonI3Cy4AT RqPuObCmadeMbeCbKTBS5z/CGkptAbKeNd1u3h+i99Ml3wTLisYqucCfH2+kj+7/ sZDNQwTglaDIa4Yz0IR2E4ortjW6bqiI3xkaD5I1RhHBcOz9OP+x5dI3IQYP+qDi X+V/P+udhABArAFk93keAGsbqFzR50g+ijMs79AGD+XZKjWJw2JZG0KWMvB+Og1q QDUcQ0qVgrANViLTuF8b7t5c9dHtGJi88PBORS5j+qu3PYE2DyhqEshGeOr6wKxD GbjD4KxsNeg=l+xe -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce