-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== 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 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-2021-20254 https://access.redhat.com/security/updates/classification/#moderate 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 iQIVAwUBYL/yENzjgjWX9erEAQgkxw/+Meh7W9BF4itKNWOlWxtE9U+1moCcfFsJ mBYZkImeT22C0743Di4iakgk6HCreollBFrdfEHB4+qdiUvTBa/N7/TtdXC/OUSX XLz+NRUYuAQt2VJMQMqjBHY0ZXLx9feX/RAGTbaXunsOK5rY+S0txsoE9kVgTpTI IiwEQg/WlsIoqES24o5og23b0PlKBK5Rp4gA4WQRFyv9N1Vklk6fzV6V0eB4A+md 4ybdAFI/SVNxvQrg9OIPrr6Qsh0pYBCk0yk5xiav9mq3pHe9xoLMZPjN4NHwnJll Njj6aBRyVTX+lGg1rNFD4cGF0vLOoTUU4mST4FiKC5kU4jTqXsA08hW39+TNjFn0 iv5q0Q9HhrTA7y6ljDYuvSXPVltNMRvOyh7u4v/J47oJwUEfJPfd0Kv6VgA4jrlK dU8K4pKmdI4TUS9uXdmGd4nxeGHCoBMROJCkYx9uZN0N5fsZt7XzTU9tISMEQSNc 99XGKyhpuKMoipyHg3Pjr3wDoyGmlGzs4vKfCAgqrYdN7TubADOlXosFmdFxWT8E uCpF2st5ZD56i61CTPCNQe2YezY+rKruz/zFA3AqFbzEQqAyJN011xYgbAkis3J/ mgQQHw23iYJc+pIR09196Ci9W9e7fjoEOXfCrHncuMcplsWavjQbNYZxonnYlhxT WP8vnkykuUo= =Eg2g -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce