-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: authconfig security, bug fix, and enhancement update Advisory ID: RHSA-2017:2285-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2285 Issue date: 2017-08-01 CVE Names: CVE-2017-7488 ===================================================================== 1. Summary: An update for authconfig 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 ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 3. Description: The authconfig packages contain a command-line utility and a GUI application that can configure a workstation to be a client for certain network user information, authentication schemes, and other user information and authentication-related options. Security Fix(es): * A flaw was found where authconfig could configure sssd in a way that treats existing and non-existing logins differently, leaking information on existence of a user. An attacker with physical or network access to the machine could enumerate users via a timing attack. (CVE-2017-7488) This issue was discovered by Tomas Mraz (Red Hat) and Thorsten Scherf (Red Hat). Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1329598 - authconfig breaks PAM system-auth-ac password-auth-ac for sssd in RHEL7.2 1378943 - [RFE] Allow authconfig to configure Smartcard authentication with SSSD 1441374 - gdm prompts for user password when smartcard login is configured and smartcard is inserted 1441604 - CVE-2017-7488 authconfig: Information leak when SSSD is used for authentication against remote server 1443949 - authconfig generates sssd.conf with --updateall --enablesssd --enablesssdauth 1449625 - Unlocalized strings and fuzzy translations in de, es, fr, it, ja, ko, pt_BR, ru, zh_CN, zh_TW 1450425 - After ipa-server-install cannot ssh to machine anymore. 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: authconfig-6.2.8-30.el7.src.rpm x86_64: authconfig-6.2.8-30.el7.x86_64.rpm authconfig-debuginfo-6.2.8-30.el7.x86_64.rpm authconfig-gtk-6.2.8-30.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: authconfig-6.2.8-30.el7.src.rpm x86_64: authconfig-6.2.8-30.el7.x86_64.rpm authconfig-debuginfo-6.2.8-30.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: authconfig-debuginfo-6.2.8-30.el7.x86_64.rpm authconfig-gtk-6.2.8-30.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: authconfig-6.2.8-30.el7.src.rpm aarch64: authconfig-6.2.8-30.el7.aarch64.rpm authconfig-debuginfo-6.2.8-30.el7.aarch64.rpm authconfig-gtk-6.2.8-30.el7.aarch64.rpm ppc64: authconfig-6.2.8-30.el7.ppc64.rpm authconfig-debuginfo-6.2.8-30.el7.ppc64.rpm authconfig-gtk-6.2.8-30.el7.ppc64.rpm ppc64le: authconfig-6.2.8-30.el7.ppc64le.rpm authconfig-debuginfo-6.2.8-30.el7.ppc64le.rpm authconfig-gtk-6.2.8-30.el7.ppc64le.rpm s390x: authconfig-6.2.8-30.el7.s390x.rpm authconfig-debuginfo-6.2.8-30.el7.s390x.rpm authconfig-gtk-6.2.8-30.el7.s390x.rpm x86_64: authconfig-6.2.8-30.el7.x86_64.rpm authconfig-debuginfo-6.2.8-30.el7.x86_64.rpm authconfig-gtk-6.2.8-30.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: authconfig-6.2.8-30.el7.src.rpm x86_64: authconfig-6.2.8-30.el7.x86_64.rpm authconfig-debuginfo-6.2.8-30.el7.x86_64.rpm authconfig-gtk-6.2.8-30.el7.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-2017-7488 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.4_Release_Notes/index.html 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFZgC5hXlSAg2UNWIIRAonBAKCs4CjqMMIp4ZMcNY+wd72Ey4OL9gCfeDBN XbqSb/TABXFXJCURIqZXN2o= =h65c -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce