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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.1680 Low: busybox security and bug fix update 22 November 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: busybox Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Modify Arbitrary Files -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2013-1813 Reference: ESB-2013.1661 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2013-1732.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Low: busybox security and bug fix update Advisory ID: RHSA-2013:1732-02 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-1732.html Issue date: 2013-11-21 CVE Names: CVE-2013-1813 ===================================================================== 1. Summary: Updated busybox packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low 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 Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. Description: BusyBox provides a single binary that includes versions of a large number of system commands, including a shell. This can be very useful for recovering from certain types of system failures, particularly those involving broken shared libraries. It was found that the mdev BusyBox utility could create certain directories within /dev with world-writable permissions. A local unprivileged user could use this flaw to manipulate portions of the /dev directory tree. (CVE-2013-1813) This update also fixes the following bugs: * Previously, due to a too eager string size optimization on the IBM System z architecture, the "wc" BusyBox command failed after processing standard input with the following error: wc: : No such file or directory This bug was fixed by disabling the string size optimization and the "wc" command works properly on IBM System z architectures. (BZ#820097) * Prior to this update, the "mknod" command was unable to create device nodes with a major or minor number larger than 255. Consequently, the kdump utility failed to handle such a device. The underlying source code has been modified, and it is now possible to use the "mknod" command to create device nodes with a major or minor number larger than 255. (BZ#859817) * If a network installation from an NFS server was selected, the "mount" command used the UDP protocol by default. If only TCP mounts were supported by the server, this led to a failure of the mount command. As a result, Anaconda could not continue with the installation. This bug is now fixed and NFS mount operations default to the TCP protocol. (BZ#855832) All busybox users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. 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/): 820097 - s390x: wc: : No such file or directory 919608 - CVE-2013-1813 busybox: insecure directory permissions in /dev 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/busybox-1.15.1-20.el6.src.rpm i386: busybox-1.15.1-20.el6.i686.rpm x86_64: busybox-1.15.1-20.el6.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/busybox-1.15.1-20.el6.src.rpm i386: busybox-petitboot-1.15.1-20.el6.i686.rpm x86_64: busybox-petitboot-1.15.1-20.el6.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/busybox-1.15.1-20.el6.src.rpm x86_64: busybox-1.15.1-20.el6.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/busybox-1.15.1-20.el6.src.rpm x86_64: busybox-petitboot-1.15.1-20.el6.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/busybox-1.15.1-20.el6.src.rpm i386: busybox-1.15.1-20.el6.i686.rpm ppc64: busybox-1.15.1-20.el6.ppc64.rpm s390x: busybox-1.15.1-20.el6.s390x.rpm x86_64: busybox-1.15.1-20.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/busybox-1.15.1-20.el6.src.rpm i386: busybox-petitboot-1.15.1-20.el6.i686.rpm ppc64: busybox-petitboot-1.15.1-20.el6.ppc64.rpm s390x: busybox-petitboot-1.15.1-20.el6.s390x.rpm x86_64: busybox-petitboot-1.15.1-20.el6.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/busybox-1.15.1-20.el6.src.rpm i386: busybox-1.15.1-20.el6.i686.rpm x86_64: busybox-1.15.1-20.el6.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/busybox-1.15.1-20.el6.src.rpm i386: busybox-petitboot-1.15.1-20.el6.i686.rpm x86_64: busybox-petitboot-1.15.1-20.el6.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-2013-1813.html https://access.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2013 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFSjZCnXlSAg2UNWIIRAiJSAJ0TqYZUa5QB/eJhmFHvQcg82lLB2wCgh2yo aJ1PXAUjIZKdjdMPJ7beUm4= =orqI - -----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. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. 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