-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: krb5 security update Advisory ID: RHSA-2011:1790-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1790.html Issue date: 2011-12-06 CVE Names: CVE-2011-1530 ===================================================================== 1. Summary: Updated krb5 packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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). A NULL pointer dereference flaw was found in the way the MIT Kerberos KDC processed certain TGS (Ticket-granting Server) requests. A remote, authenticated attacker could use this flaw to crash the KDC via a specially-crafted TGS request. (CVE-2011-1530) Red Hat would like to thank the MIT Kerberos project for reporting this issue. All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. 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/): 753748 - CVE-2011-1530 krb5 (krb5kdc): NULL pointer dereference in the TGS handling (MITKRB5-SA-2011-007) 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/krb5-1.9-22.el6_2.1.src.rpm i386: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-libs-1.9-22.el6_2.1.i686.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.i686.rpm krb5-workstation-1.9-22.el6_2.1.i686.rpm x86_64: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-debuginfo-1.9-22.el6_2.1.x86_64.rpm krb5-libs-1.9-22.el6_2.1.i686.rpm krb5-libs-1.9-22.el6_2.1.x86_64.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.x86_64.rpm krb5-workstation-1.9-22.el6_2.1.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client-optional/en/os/SRPMS/krb5-1.9-22.el6_2.1.src.rpm i386: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-devel-1.9-22.el6_2.1.i686.rpm krb5-server-1.9-22.el6_2.1.i686.rpm krb5-server-ldap-1.9-22.el6_2.1.i686.rpm x86_64: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-debuginfo-1.9-22.el6_2.1.x86_64.rpm krb5-devel-1.9-22.el6_2.1.i686.rpm krb5-devel-1.9-22.el6_2.1.x86_64.rpm krb5-server-1.9-22.el6_2.1.x86_64.rpm krb5-server-ldap-1.9-22.el6_2.1.i686.rpm krb5-server-ldap-1.9-22.el6_2.1.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/krb5-1.9-22.el6_2.1.src.rpm x86_64: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-debuginfo-1.9-22.el6_2.1.x86_64.rpm krb5-libs-1.9-22.el6_2.1.i686.rpm krb5-libs-1.9-22.el6_2.1.x86_64.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.x86_64.rpm krb5-workstation-1.9-22.el6_2.1.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode-optional/en/os/SRPMS/krb5-1.9-22.el6_2.1.src.rpm x86_64: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-debuginfo-1.9-22.el6_2.1.x86_64.rpm krb5-devel-1.9-22.el6_2.1.i686.rpm krb5-devel-1.9-22.el6_2.1.x86_64.rpm krb5-server-1.9-22.el6_2.1.x86_64.rpm krb5-server-ldap-1.9-22.el6_2.1.i686.rpm krb5-server-ldap-1.9-22.el6_2.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/krb5-1.9-22.el6_2.1.src.rpm i386: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-devel-1.9-22.el6_2.1.i686.rpm krb5-libs-1.9-22.el6_2.1.i686.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.i686.rpm krb5-server-1.9-22.el6_2.1.i686.rpm krb5-server-ldap-1.9-22.el6_2.1.i686.rpm krb5-workstation-1.9-22.el6_2.1.i686.rpm ppc64: krb5-debuginfo-1.9-22.el6_2.1.ppc.rpm krb5-debuginfo-1.9-22.el6_2.1.ppc64.rpm krb5-devel-1.9-22.el6_2.1.ppc.rpm krb5-devel-1.9-22.el6_2.1.ppc64.rpm krb5-libs-1.9-22.el6_2.1.ppc.rpm krb5-libs-1.9-22.el6_2.1.ppc64.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.ppc64.rpm krb5-server-1.9-22.el6_2.1.ppc64.rpm krb5-server-ldap-1.9-22.el6_2.1.ppc.rpm krb5-server-ldap-1.9-22.el6_2.1.ppc64.rpm krb5-workstation-1.9-22.el6_2.1.ppc64.rpm s390x: krb5-debuginfo-1.9-22.el6_2.1.s390.rpm krb5-debuginfo-1.9-22.el6_2.1.s390x.rpm krb5-devel-1.9-22.el6_2.1.s390.rpm krb5-devel-1.9-22.el6_2.1.s390x.rpm krb5-libs-1.9-22.el6_2.1.s390.rpm krb5-libs-1.9-22.el6_2.1.s390x.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.s390x.rpm krb5-server-1.9-22.el6_2.1.s390x.rpm krb5-server-ldap-1.9-22.el6_2.1.s390.rpm krb5-server-ldap-1.9-22.el6_2.1.s390x.rpm krb5-workstation-1.9-22.el6_2.1.s390x.rpm x86_64: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-debuginfo-1.9-22.el6_2.1.x86_64.rpm krb5-devel-1.9-22.el6_2.1.i686.rpm krb5-devel-1.9-22.el6_2.1.x86_64.rpm krb5-libs-1.9-22.el6_2.1.i686.rpm krb5-libs-1.9-22.el6_2.1.x86_64.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.x86_64.rpm krb5-server-1.9-22.el6_2.1.x86_64.rpm krb5-server-ldap-1.9-22.el6_2.1.i686.rpm krb5-server-ldap-1.9-22.el6_2.1.x86_64.rpm krb5-workstation-1.9-22.el6_2.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/krb5-1.9-22.el6_2.1.src.rpm i386: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-devel-1.9-22.el6_2.1.i686.rpm krb5-libs-1.9-22.el6_2.1.i686.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.i686.rpm krb5-server-1.9-22.el6_2.1.i686.rpm krb5-server-ldap-1.9-22.el6_2.1.i686.rpm krb5-workstation-1.9-22.el6_2.1.i686.rpm x86_64: krb5-debuginfo-1.9-22.el6_2.1.i686.rpm krb5-debuginfo-1.9-22.el6_2.1.x86_64.rpm krb5-devel-1.9-22.el6_2.1.i686.rpm krb5-devel-1.9-22.el6_2.1.x86_64.rpm krb5-libs-1.9-22.el6_2.1.i686.rpm krb5-libs-1.9-22.el6_2.1.x86_64.rpm krb5-pkinit-openssl-1.9-22.el6_2.1.x86_64.rpm krb5-server-1.9-22.el6_2.1.x86_64.rpm krb5-server-ldap-1.9-22.el6_2.1.i686.rpm krb5-server-ldap-1.9-22.el6_2.1.x86_64.rpm krb5-workstation-1.9-22.el6_2.1.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-2011-1530.html https://access.redhat.com/security/updates/classification/#moderate http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-007.txt 8. Contact: The Red Hat security contact is . 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) iD8DBQFO3okDXlSAg2UNWIIRAhg/AJ0ZfYQdjyxWXJyUfVZifjmanSA64wCdGoNa 46PF96iGp1nmL9YiustcWMU= =TyYd -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce