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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.1051 Moderate: krb5 security update 19 October 2011 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: krb5 Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 UNIX variants (UNIX, Linux, OSX) Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2011-1529 CVE-2011-1528 CVE-2011-1527 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2011-1379.html Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running krb5 check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: krb5 security update Advisory ID: RHSA-2011:1379-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1379.html Issue date: 2011-10-18 CVE Names: CVE-2011-1527 CVE-2011-1528 CVE-2011-1529 ===================================================================== 1. Summary: Updated krb5 packages that fix multiple 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 Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (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: Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third-party, the Key Distribution Center (KDC). Multiple NULL pointer dereference and assertion failure flaws were found in the MIT Kerberos KDC when it was configured to use an LDAP (Lightweight Directory Access Protocol) or Berkeley Database (Berkeley DB) back end. A remote attacker could use these flaws to crash the KDC. (CVE-2011-1527, CVE-2011-1528, CVE-2011-1529) Red Hat would like to thank the MIT Kerberos project for reporting the CVE-2011-1527 issue. Upstream acknowledges Andrej Ota as the original reporter of CVE-2011-1527. All krb5 users should upgrade to these updated packages, which contain a backported patch to correct these issues. After installing the updated packages, the krb5kdc daemon 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/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 737711 - CVE-2011-1527 CVE-2011-1528 CVE-2011-1529 krb5: KDC denial of service vulnerabilities (MITKRB5-SA-2011-006) 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/krb5-1.9-9.el6_1.2.src.rpm i386: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-libs-1.9-9.el6_1.2.i686.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.i686.rpm krb5-workstation-1.9-9.el6_1.2.i686.rpm x86_64: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-debuginfo-1.9-9.el6_1.2.x86_64.rpm krb5-libs-1.9-9.el6_1.2.i686.rpm krb5-libs-1.9-9.el6_1.2.x86_64.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.x86_64.rpm krb5-workstation-1.9-9.el6_1.2.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/krb5-1.9-9.el6_1.2.src.rpm i386: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-devel-1.9-9.el6_1.2.i686.rpm krb5-server-1.9-9.el6_1.2.i686.rpm krb5-server-ldap-1.9-9.el6_1.2.i686.rpm x86_64: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-debuginfo-1.9-9.el6_1.2.x86_64.rpm krb5-devel-1.9-9.el6_1.2.i686.rpm krb5-devel-1.9-9.el6_1.2.x86_64.rpm krb5-server-1.9-9.el6_1.2.x86_64.rpm krb5-server-ldap-1.9-9.el6_1.2.i686.rpm krb5-server-ldap-1.9-9.el6_1.2.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/krb5-1.9-9.el6_1.2.src.rpm x86_64: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-debuginfo-1.9-9.el6_1.2.x86_64.rpm krb5-libs-1.9-9.el6_1.2.i686.rpm krb5-libs-1.9-9.el6_1.2.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/krb5-1.9-9.el6_1.2.src.rpm x86_64: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-debuginfo-1.9-9.el6_1.2.x86_64.rpm krb5-devel-1.9-9.el6_1.2.i686.rpm krb5-devel-1.9-9.el6_1.2.x86_64.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.x86_64.rpm krb5-server-1.9-9.el6_1.2.x86_64.rpm krb5-server-ldap-1.9-9.el6_1.2.i686.rpm krb5-server-ldap-1.9-9.el6_1.2.x86_64.rpm krb5-workstation-1.9-9.el6_1.2.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/krb5-1.9-9.el6_1.2.src.rpm i386: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-devel-1.9-9.el6_1.2.i686.rpm krb5-libs-1.9-9.el6_1.2.i686.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.i686.rpm krb5-server-1.9-9.el6_1.2.i686.rpm krb5-server-ldap-1.9-9.el6_1.2.i686.rpm krb5-workstation-1.9-9.el6_1.2.i686.rpm ppc64: krb5-debuginfo-1.9-9.el6_1.2.ppc.rpm krb5-debuginfo-1.9-9.el6_1.2.ppc64.rpm krb5-devel-1.9-9.el6_1.2.ppc.rpm krb5-devel-1.9-9.el6_1.2.ppc64.rpm krb5-libs-1.9-9.el6_1.2.ppc.rpm krb5-libs-1.9-9.el6_1.2.ppc64.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.ppc64.rpm krb5-server-1.9-9.el6_1.2.ppc64.rpm krb5-server-ldap-1.9-9.el6_1.2.ppc.rpm krb5-server-ldap-1.9-9.el6_1.2.ppc64.rpm krb5-workstation-1.9-9.el6_1.2.ppc64.rpm s390x: krb5-debuginfo-1.9-9.el6_1.2.s390.rpm krb5-debuginfo-1.9-9.el6_1.2.s390x.rpm krb5-devel-1.9-9.el6_1.2.s390.rpm krb5-devel-1.9-9.el6_1.2.s390x.rpm krb5-libs-1.9-9.el6_1.2.s390.rpm krb5-libs-1.9-9.el6_1.2.s390x.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.s390x.rpm krb5-server-1.9-9.el6_1.2.s390x.rpm krb5-server-ldap-1.9-9.el6_1.2.s390.rpm krb5-server-ldap-1.9-9.el6_1.2.s390x.rpm krb5-workstation-1.9-9.el6_1.2.s390x.rpm x86_64: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-debuginfo-1.9-9.el6_1.2.x86_64.rpm krb5-devel-1.9-9.el6_1.2.i686.rpm krb5-devel-1.9-9.el6_1.2.x86_64.rpm krb5-libs-1.9-9.el6_1.2.i686.rpm krb5-libs-1.9-9.el6_1.2.x86_64.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.x86_64.rpm krb5-server-1.9-9.el6_1.2.x86_64.rpm krb5-server-ldap-1.9-9.el6_1.2.i686.rpm krb5-server-ldap-1.9-9.el6_1.2.x86_64.rpm krb5-workstation-1.9-9.el6_1.2.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/krb5-1.9-9.el6_1.2.src.rpm i386: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-devel-1.9-9.el6_1.2.i686.rpm krb5-libs-1.9-9.el6_1.2.i686.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.i686.rpm krb5-server-1.9-9.el6_1.2.i686.rpm krb5-server-ldap-1.9-9.el6_1.2.i686.rpm krb5-workstation-1.9-9.el6_1.2.i686.rpm x86_64: krb5-debuginfo-1.9-9.el6_1.2.i686.rpm krb5-debuginfo-1.9-9.el6_1.2.x86_64.rpm krb5-devel-1.9-9.el6_1.2.i686.rpm krb5-devel-1.9-9.el6_1.2.x86_64.rpm krb5-libs-1.9-9.el6_1.2.i686.rpm krb5-libs-1.9-9.el6_1.2.x86_64.rpm krb5-pkinit-openssl-1.9-9.el6_1.2.x86_64.rpm krb5-server-1.9-9.el6_1.2.x86_64.rpm krb5-server-ldap-1.9-9.el6_1.2.i686.rpm krb5-server-ldap-1.9-9.el6_1.2.x86_64.rpm krb5-workstation-1.9-9.el6_1.2.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-2011-1527.html https://www.redhat.com/security/data/cve/CVE-2011-1528.html https://www.redhat.com/security/data/cve/CVE-2011-1529.html https://access.redhat.com/security/updates/classification/#moderate http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2011 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFOngnVXlSAg2UNWIIRAmqRAJ94bmk7qEXhlCS/IZMaXqJSmRH+pwCgs7zx SL14/7irg9JuvAX62+2exUM= =vwYV - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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