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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.0476 Moderate: samba4 security update 10 April 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: samba4 Publisher: Red Hat Operating System: Red Hat Enterprise Linux WS/Desktop 6 Red Hat Enterprise Linux Server 6 Impact/Access: Reduced Security -- Remote/Unauthenticated Access Confidential Data -- Existing Account Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2013-6442 CVE-2013-4496 CVE-2012-6150 Reference: ASB-2014.0032 ESB-2014.0391 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2014-0383.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: samba4 security update Advisory ID: RHSA-2014:0383-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0383.html Issue date: 2014-04-09 CVE Names: CVE-2012-6150 CVE-2013-4496 CVE-2013-6442 ===================================================================== 1. Summary: Updated samba4 packages that fix three security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: Samba is an open-source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information. It was found that certain Samba configurations did not enforce the password lockout mechanism. A remote attacker could use this flaw to perform password guessing attacks on Samba user accounts. Note: this flaw only affected Samba when deployed as a Primary Domain Controller. (CVE-2013-4496) A flaw was found in Samba's "smbcacls" command, which is used to set or get ACLs on SMB file shares. Certain command line options of this command would incorrectly remove an ACL previously applied on a file or a directory, leaving the file or directory without the intended ACL. (CVE-2013-6442) A flaw was found in the way the pam_winbind module handled configurations that specified a non-existent group as required. An authenticated user could possibly use this flaw to gain access to a service using pam_winbind in its PAM configuration when group restriction was intended for access to the service. (CVE-2012-6150) Red Hat would like to thank the Samba project for reporting CVE-2013-4496 and CVE-2013-6442, and Sam Richardson for reporting CVE-2012-6150. Upstream acknowledges Andrew Bartlett as the original reporter of CVE-2013-4496, and Noel Power as the original reporter of CVE-2013-6442. All users of Samba are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the smb service will be restarted automatically. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1036897 - CVE-2012-6150 samba: pam_winbind fails open when non-existent group specified to require_membership_of 1044099 - CVE-2013-6442 samba: smbcacls will delete ACL lists in certain circumstances 1072792 - CVE-2013-4496 samba: Password lockout not enforced for SAMR password changes 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/samba4-4.0.0-61.el6_5.rc4.src.rpm i386: samba4-4.0.0-61.el6_5.rc4.i686.rpm samba4-client-4.0.0-61.el6_5.rc4.i686.rpm samba4-common-4.0.0-61.el6_5.rc4.i686.rpm samba4-dc-4.0.0-61.el6_5.rc4.i686.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.i686.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.i686.rpm samba4-devel-4.0.0-61.el6_5.rc4.i686.rpm samba4-libs-4.0.0-61.el6_5.rc4.i686.rpm samba4-pidl-4.0.0-61.el6_5.rc4.i686.rpm samba4-python-4.0.0-61.el6_5.rc4.i686.rpm samba4-swat-4.0.0-61.el6_5.rc4.i686.rpm samba4-test-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.i686.rpm x86_64: samba4-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-client-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-common-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-dc-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-devel-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-libs-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-pidl-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-python-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-swat-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-test-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/samba4-4.0.0-61.el6_5.rc4.src.rpm x86_64: samba4-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-client-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-common-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-dc-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-devel-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-libs-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-pidl-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-python-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-swat-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-test-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/samba4-4.0.0-61.el6_5.rc4.src.rpm i386: samba4-4.0.0-61.el6_5.rc4.i686.rpm samba4-client-4.0.0-61.el6_5.rc4.i686.rpm samba4-common-4.0.0-61.el6_5.rc4.i686.rpm samba4-dc-4.0.0-61.el6_5.rc4.i686.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.i686.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.i686.rpm samba4-devel-4.0.0-61.el6_5.rc4.i686.rpm samba4-libs-4.0.0-61.el6_5.rc4.i686.rpm samba4-pidl-4.0.0-61.el6_5.rc4.i686.rpm samba4-python-4.0.0-61.el6_5.rc4.i686.rpm samba4-swat-4.0.0-61.el6_5.rc4.i686.rpm samba4-test-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.i686.rpm ppc64: samba4-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-client-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-common-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-dc-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-devel-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-libs-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-pidl-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-python-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-swat-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-test-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-winbind-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.ppc64.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.ppc64.rpm s390x: samba4-4.0.0-61.el6_5.rc4.s390x.rpm samba4-client-4.0.0-61.el6_5.rc4.s390x.rpm samba4-common-4.0.0-61.el6_5.rc4.s390x.rpm samba4-dc-4.0.0-61.el6_5.rc4.s390x.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.s390x.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.s390x.rpm samba4-devel-4.0.0-61.el6_5.rc4.s390x.rpm samba4-libs-4.0.0-61.el6_5.rc4.s390x.rpm samba4-pidl-4.0.0-61.el6_5.rc4.s390x.rpm samba4-python-4.0.0-61.el6_5.rc4.s390x.rpm samba4-swat-4.0.0-61.el6_5.rc4.s390x.rpm samba4-test-4.0.0-61.el6_5.rc4.s390x.rpm samba4-winbind-4.0.0-61.el6_5.rc4.s390x.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.s390x.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.s390x.rpm x86_64: samba4-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-client-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-common-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-dc-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-devel-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-libs-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-pidl-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-python-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-swat-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-test-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/samba4-4.0.0-61.el6_5.rc4.src.rpm i386: samba4-4.0.0-61.el6_5.rc4.i686.rpm samba4-client-4.0.0-61.el6_5.rc4.i686.rpm samba4-common-4.0.0-61.el6_5.rc4.i686.rpm samba4-dc-4.0.0-61.el6_5.rc4.i686.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.i686.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.i686.rpm samba4-devel-4.0.0-61.el6_5.rc4.i686.rpm samba4-libs-4.0.0-61.el6_5.rc4.i686.rpm samba4-pidl-4.0.0-61.el6_5.rc4.i686.rpm samba4-python-4.0.0-61.el6_5.rc4.i686.rpm samba4-swat-4.0.0-61.el6_5.rc4.i686.rpm samba4-test-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.i686.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.i686.rpm x86_64: samba4-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-client-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-common-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-dc-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-dc-libs-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-debuginfo-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-devel-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-libs-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-pidl-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-python-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-swat-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-test-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-clients-4.0.0-61.el6_5.rc4.x86_64.rpm samba4-winbind-krb5-locator-4.0.0-61.el6_5.rc4.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/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2012-6150.html https://www.redhat.com/security/data/cve/CVE-2013-4496.html https://www.redhat.com/security/data/cve/CVE-2013-6442.html https://access.redhat.com/security/updates/classification/#moderate https://www.samba.org/samba/security/CVE-2012-6150 https://www.samba.org/samba/security/CVE-2013-4496 https://www.samba.org/samba/security/CVE-2013-6442 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2014 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFTRZezXlSAg2UNWIIRAmQLAJ9PPdg4jXQXKNN1e8TFqisaUosVbwCgstbN NdP/fM1RxXjWfwDD6vivUS4= =akGr - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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