-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: system-config-firewall security update Advisory ID: RHSA-2011:0953-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0953.html Issue date: 2011-07-18 CVE Names: CVE-2011-2520 ===================================================================== 1. Summary: Updated system-config-firewall 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, noarch, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - noarch Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64 3. Description: system-config-firewall is a graphical user interface for basic firewall setup. It was found that system-config-firewall used the Python pickle module in an insecure way when sending data (via D-Bus) to the privileged back-end mechanism. A local user authorized to configure firewall rules using system-config-firewall could use this flaw to execute arbitrary code with root privileges, by sending a specially-crafted serialized object. (CVE-2011-2520) Red Hat would like to thank Marco Slaviero of SensePost for reporting this issue. This erratum updates system-config-firewall to use JSON (JavaScript Object Notation) for data exchange, instead of pickle. Therefore, an updated version of system-config-printer that uses this new communication data format is also provided in this erratum. Users of system-config-firewall are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. Running instances of system-config-firewall must be restarted before the utility will be able to communicate with its updated back-end. 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/): 717985 - CVE-2011-2520 system-config-firewall: privilege escalation flaw via use of python pickle 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/system-config-firewall-1.2.27-3.el6_1.3.src.rpm ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/system-config-printer-1.1.16-17.el6_1.2.src.rpm i386: system-config-printer-1.1.16-17.el6_1.2.i686.rpm system-config-printer-debuginfo-1.1.16-17.el6_1.2.i686.rpm system-config-printer-libs-1.1.16-17.el6_1.2.i686.rpm system-config-printer-udev-1.1.16-17.el6_1.2.i686.rpm noarch: system-config-firewall-1.2.27-3.el6_1.3.noarch.rpm system-config-firewall-base-1.2.27-3.el6_1.3.noarch.rpm system-config-firewall-tui-1.2.27-3.el6_1.3.noarch.rpm x86_64: system-config-printer-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-debuginfo-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-libs-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-udev-1.1.16-17.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/system-config-firewall-1.2.27-3.el6_1.3.src.rpm noarch: system-config-firewall-base-1.2.27-3.el6_1.3.noarch.rpm system-config-firewall-tui-1.2.27-3.el6_1.3.noarch.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/system-config-firewall-1.2.27-3.el6_1.3.src.rpm noarch: system-config-firewall-1.2.27-3.el6_1.3.noarch.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/system-config-firewall-1.2.27-3.el6_1.3.src.rpm ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/system-config-printer-1.1.16-17.el6_1.2.src.rpm i386: system-config-printer-1.1.16-17.el6_1.2.i686.rpm system-config-printer-debuginfo-1.1.16-17.el6_1.2.i686.rpm system-config-printer-libs-1.1.16-17.el6_1.2.i686.rpm system-config-printer-udev-1.1.16-17.el6_1.2.i686.rpm noarch: system-config-firewall-1.2.27-3.el6_1.3.noarch.rpm system-config-firewall-base-1.2.27-3.el6_1.3.noarch.rpm system-config-firewall-tui-1.2.27-3.el6_1.3.noarch.rpm ppc64: system-config-printer-1.1.16-17.el6_1.2.ppc64.rpm system-config-printer-debuginfo-1.1.16-17.el6_1.2.ppc64.rpm system-config-printer-libs-1.1.16-17.el6_1.2.ppc64.rpm system-config-printer-udev-1.1.16-17.el6_1.2.ppc64.rpm s390x: system-config-printer-1.1.16-17.el6_1.2.s390x.rpm system-config-printer-debuginfo-1.1.16-17.el6_1.2.s390x.rpm system-config-printer-libs-1.1.16-17.el6_1.2.s390x.rpm system-config-printer-udev-1.1.16-17.el6_1.2.s390x.rpm x86_64: system-config-printer-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-debuginfo-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-libs-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-udev-1.1.16-17.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/system-config-firewall-1.2.27-3.el6_1.3.src.rpm ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/system-config-printer-1.1.16-17.el6_1.2.src.rpm i386: system-config-printer-1.1.16-17.el6_1.2.i686.rpm system-config-printer-debuginfo-1.1.16-17.el6_1.2.i686.rpm system-config-printer-libs-1.1.16-17.el6_1.2.i686.rpm system-config-printer-udev-1.1.16-17.el6_1.2.i686.rpm noarch: system-config-firewall-1.2.27-3.el6_1.3.noarch.rpm system-config-firewall-base-1.2.27-3.el6_1.3.noarch.rpm system-config-firewall-tui-1.2.27-3.el6_1.3.noarch.rpm x86_64: system-config-printer-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-debuginfo-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-libs-1.1.16-17.el6_1.2.x86_64.rpm system-config-printer-udev-1.1.16-17.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-2011-2520.html 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 2011 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFOJK9mXlSAg2UNWIIRAo0BAJ41WBVD9620jZwW1ac2CkiIn49T4ACdFDbg jMJNzR30MDhT1RH8H5XkcA4= =IXvZ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce