-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: openssh security update Advisory ID: RHSA-2021:4782-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4782 Issue date: 2021-11-23 CVE Names: CVE-2021-41617 ===================================================================== 1. Summary: An update for openssh 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) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es): * openssh: privilege escalation when AuthorizedKeysCommand or AuthorizedPrincipalsCommand are configured (CVE-2021-41617) 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. 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 OpenSSH server daemon (sshd) will be restarted automatically. 5. Bugs fixed (https://bugzilla.redhat.com/): 1999263 - frequent sshd segfaults 2008291 - CVE-2021-41617 openssh: privilege escalation when AuthorizedKeysCommand or AuthorizedPrincipalsCommand are configured 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: openssh-7.4p1-22.el7_9.src.rpm x86_64: openssh-7.4p1-22.el7_9.x86_64.rpm openssh-askpass-7.4p1-22.el7_9.x86_64.rpm openssh-clients-7.4p1-22.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-22.el7_9.x86_64.rpm openssh-keycat-7.4p1-22.el7_9.x86_64.rpm openssh-server-7.4p1-22.el7_9.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: openssh-cavs-7.4p1-22.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-22.el7_9.i686.rpm openssh-debuginfo-7.4p1-22.el7_9.x86_64.rpm openssh-ldap-7.4p1-22.el7_9.x86_64.rpm openssh-server-sysvinit-7.4p1-22.el7_9.x86_64.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.i686.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: openssh-7.4p1-22.el7_9.src.rpm x86_64: openssh-7.4p1-22.el7_9.x86_64.rpm openssh-clients-7.4p1-22.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-22.el7_9.x86_64.rpm openssh-keycat-7.4p1-22.el7_9.x86_64.rpm openssh-server-7.4p1-22.el7_9.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: openssh-askpass-7.4p1-22.el7_9.x86_64.rpm openssh-cavs-7.4p1-22.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-22.el7_9.i686.rpm openssh-debuginfo-7.4p1-22.el7_9.x86_64.rpm openssh-ldap-7.4p1-22.el7_9.x86_64.rpm openssh-server-sysvinit-7.4p1-22.el7_9.x86_64.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.i686.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: openssh-7.4p1-22.el7_9.src.rpm ppc64: openssh-7.4p1-22.el7_9.ppc64.rpm openssh-askpass-7.4p1-22.el7_9.ppc64.rpm openssh-clients-7.4p1-22.el7_9.ppc64.rpm openssh-debuginfo-7.4p1-22.el7_9.ppc64.rpm openssh-keycat-7.4p1-22.el7_9.ppc64.rpm openssh-server-7.4p1-22.el7_9.ppc64.rpm ppc64le: openssh-7.4p1-22.el7_9.ppc64le.rpm openssh-askpass-7.4p1-22.el7_9.ppc64le.rpm openssh-clients-7.4p1-22.el7_9.ppc64le.rpm openssh-debuginfo-7.4p1-22.el7_9.ppc64le.rpm openssh-keycat-7.4p1-22.el7_9.ppc64le.rpm openssh-server-7.4p1-22.el7_9.ppc64le.rpm s390x: openssh-7.4p1-22.el7_9.s390x.rpm openssh-askpass-7.4p1-22.el7_9.s390x.rpm openssh-clients-7.4p1-22.el7_9.s390x.rpm openssh-debuginfo-7.4p1-22.el7_9.s390x.rpm openssh-keycat-7.4p1-22.el7_9.s390x.rpm openssh-server-7.4p1-22.el7_9.s390x.rpm x86_64: openssh-7.4p1-22.el7_9.x86_64.rpm openssh-askpass-7.4p1-22.el7_9.x86_64.rpm openssh-clients-7.4p1-22.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-22.el7_9.x86_64.rpm openssh-keycat-7.4p1-22.el7_9.x86_64.rpm openssh-server-7.4p1-22.el7_9.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: openssh-cavs-7.4p1-22.el7_9.ppc64.rpm openssh-debuginfo-7.4p1-22.el7_9.ppc.rpm openssh-debuginfo-7.4p1-22.el7_9.ppc64.rpm openssh-ldap-7.4p1-22.el7_9.ppc64.rpm openssh-server-sysvinit-7.4p1-22.el7_9.ppc64.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.ppc.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.ppc64.rpm ppc64le: openssh-cavs-7.4p1-22.el7_9.ppc64le.rpm openssh-debuginfo-7.4p1-22.el7_9.ppc64le.rpm openssh-ldap-7.4p1-22.el7_9.ppc64le.rpm openssh-server-sysvinit-7.4p1-22.el7_9.ppc64le.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.ppc64le.rpm s390x: openssh-cavs-7.4p1-22.el7_9.s390x.rpm openssh-debuginfo-7.4p1-22.el7_9.s390.rpm openssh-debuginfo-7.4p1-22.el7_9.s390x.rpm openssh-ldap-7.4p1-22.el7_9.s390x.rpm openssh-server-sysvinit-7.4p1-22.el7_9.s390x.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.s390.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.s390x.rpm x86_64: openssh-cavs-7.4p1-22.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-22.el7_9.i686.rpm openssh-debuginfo-7.4p1-22.el7_9.x86_64.rpm openssh-ldap-7.4p1-22.el7_9.x86_64.rpm openssh-server-sysvinit-7.4p1-22.el7_9.x86_64.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.i686.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: openssh-7.4p1-22.el7_9.src.rpm x86_64: openssh-7.4p1-22.el7_9.x86_64.rpm openssh-askpass-7.4p1-22.el7_9.x86_64.rpm openssh-clients-7.4p1-22.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-22.el7_9.x86_64.rpm openssh-keycat-7.4p1-22.el7_9.x86_64.rpm openssh-server-7.4p1-22.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: openssh-cavs-7.4p1-22.el7_9.x86_64.rpm openssh-debuginfo-7.4p1-22.el7_9.i686.rpm openssh-debuginfo-7.4p1-22.el7_9.x86_64.rpm openssh-ldap-7.4p1-22.el7_9.x86_64.rpm openssh-server-sysvinit-7.4p1-22.el7_9.x86_64.rpm pam_ssh_agent_auth-0.10.3-2.22.el7_9.i686.rpm pam_ssh_agent_auth-0.10.3-2.22.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-2021-41617 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 iQIVAwUBYZ1SC9zjgjWX9erEAQhLjxAAiHWagCBbmzT/4MNabC9weTRY7RiWniHW BSb8jyDLa5yR+ME/3Lmqjj6dm+XCv5jcJVGtLsjOn0hdoXu6g2j3HH75OJHb2s9+ a5bXeJ8J3mnz+fetNfNHTt7ZJCZf+jhar6F6An7YxXo3K47zJmDuhZbeSDZWw36/ P+1Py/4MXcVWx7LlQaSg85piB4f2V4OrHFvV163/YhCaQl1O2ID+c2L+0M1rPHQW 7rn5WUia2PIBSaaYnS41ImwWvTrAcF9IJdtyyR/oZdTKdcsmdCT7PnwlMYhxDUbU G7zY5ZOLXBw5giqbx3PJpF292nwl7c9Cz+X/eHN22sFMe7Ax+tPx/VZocDjStL2F ykq8JiKYtKem0D5Xc0dAjjmLPMmGONgJIG0VIa6njt2+0AB80nWYY2krUVD8bXsG w3b/a/xKvLptPZnBVq2ArDM57J913kvK4cY7P+dm1MK/VoPh+Gp2A0gSotg/O6eU fFnNiC2213UFE78ENb/aTKIfdMWl96bSVWSmwlaiB5Al07ubLQ7IdSAYWGUYqS4B fqQyZXwwL60TqgwE1SpJ91pJvgFwVHQgvzU+XfRjtJjSrw8rq+G9DAbe6V1N5NYB laqFmQhV3PuoS+MCZ8cbm0ODBTLgnXrSMBpniTulbXQlwIRcz4qb0kr/pQ1iIWvB AqpdzWCXFkk= =wAVY -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce