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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0083 -- [Linux][RedHat] Important: kernel security and bug fix update 24 January 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Kernel Publisher: Red Hat Operating System: Red Hat Linux 5 UNIX variants (UNIX, Linux, OSX) Impact: Inappropriate Access Increased Privileges Denial of Service Access: Existing Account CVE Names: CVE-2008-0001 CVE-2007-6416 CVE-2007-6206 CVE-2007-5904 CVE-2007-3104 Ref: AA-2008.0012 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2008-0089.html Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running Linux 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: Important: kernel security and bug fix update Advisory ID: RHSA-2008:0089-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0089.html Issue date: 2008-01-23 CVE Names: CVE-2007-3104 CVE-2007-5904 CVE-2007-6206 CVE-2007-6416 CVE-2008-0001 ===================================================================== 1. Summary: Updated kernel packages that fix several security issues and several bugs in the Red Hat Enterprise Linux 5 kernel are now available. This update has been rated as having important security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. These new kernel packages fix the following security issues: A flaw was found in the virtual filesystem (VFS). An unprivileged local user could truncate directories to which they had write permission; this could render the contents of the directory inaccessible. (CVE-2008-0001, Important) A flaw was found in the Xen PAL emulation on Intel 64 platforms. A guest Hardware-assisted virtual machine (HVM) could read the arbitrary physical memory of the host system, which could make information available to unauthorized users. (CVE-2007-6416, Important) A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file, potentially containing sensitive information. (CVE-2007-6206, Moderate) A buffer overflow flaw was found in the CIFS virtual file system. A remote,authenticated user could issue a request that could lead to a denial of service. (CVE-2007-5904, Moderate) A flaw was found in the "sysfs_readdir" function. A local user could create a race condition which would cause a denial of service (kernel oops). (CVE-2007-3104, Moderate) As well, these updated packages fix the following bugs: * running the "strace -f" command caused strace to hang, without displaying information about child processes. * unmounting an unresponsive, interruptable NFS mount, for example, one mounted with the "intr" option, may have caused a system crash. * a bug in the s2io.ko driver prevented VLAN devices from being added. Attempting to add a device to a VLAN, for example, running the "vconfig add [device-name] [vlan-id]" command caused vconfig to fail. * tux used an incorrect open flag bit. This caused problems when building packages in a chroot environment, such as mock, which is used by the koji build system. Red Hat Enterprise Linux 5 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188 5. Bugs fixed (http://bugzilla.redhat.com/): 245777 - CVE-2007-3104 Null pointer to an inode in a dentry can cause an oops in sysfs_readdir [rhel-5.1.z] 372701 - CVE-2007-5904 Buffer overflow in CIFS VFS 396861 - CVE-2007-6206 Issue with core dump owner 412091 - [RHEL5 U1] [ia64] Kernel test failing under limited memory 414041 - NFS: System crashes trying to force umount a unresponsive, interruptible mount, which holds references to silly renamed files. 424181 - RHEL5.1 beta: System hung during warm boot-cycling test 425381 - CVE-2007-6416 [RHEL 5.2] [XEN/IA64] Security: vulnerability of copy_to_user in PAL emulation 426289 - [REG][5.1] VLAN add operation fail on s2io.ko driver(Neterion 10GbE card driver), 427994 - CVE-2007-3104 Null pointer to an inode in a dentry can cause an oops in sysfs_readdir 428791 - CVE-2008-0001 kernel: filesystem corruption by unprivileged user via directory truncation 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kernel-2.6.18-53.1.6.el5.src.rpm i386: kernel-2.6.18-53.1.6.el5.i686.rpm kernel-PAE-2.6.18-53.1.6.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-53.1.6.el5.i686.rpm kernel-PAE-devel-2.6.18-53.1.6.el5.i686.rpm kernel-debug-2.6.18-53.1.6.el5.i686.rpm kernel-debug-debuginfo-2.6.18-53.1.6.el5.i686.rpm kernel-debug-devel-2.6.18-53.1.6.el5.i686.rpm kernel-debuginfo-2.6.18-53.1.6.el5.i686.rpm kernel-debuginfo-common-2.6.18-53.1.6.el5.i686.rpm kernel-devel-2.6.18-53.1.6.el5.i686.rpm kernel-headers-2.6.18-53.1.6.el5.i386.rpm kernel-xen-2.6.18-53.1.6.el5.i686.rpm kernel-xen-debuginfo-2.6.18-53.1.6.el5.i686.rpm kernel-xen-devel-2.6.18-53.1.6.el5.i686.rpm noarch: kernel-doc-2.6.18-53.1.6.el5.noarch.rpm x86_64: kernel-2.6.18-53.1.6.el5.x86_64.rpm kernel-debug-2.6.18-53.1.6.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-53.1.6.el5.x86_64.rpm kernel-debug-devel-2.6.18-53.1.6.el5.x86_64.rpm kernel-debuginfo-2.6.18-53.1.6.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-53.1.6.el5.x86_64.rpm kernel-devel-2.6.18-53.1.6.el5.x86_64.rpm kernel-headers-2.6.18-53.1.6.el5.x86_64.rpm kernel-xen-2.6.18-53.1.6.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-53.1.6.el5.x86_64.rpm kernel-xen-devel-2.6.18-53.1.6.el5.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kernel-2.6.18-53.1.6.el5.src.rpm i386: kernel-2.6.18-53.1.6.el5.i686.rpm kernel-PAE-2.6.18-53.1.6.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-53.1.6.el5.i686.rpm kernel-PAE-devel-2.6.18-53.1.6.el5.i686.rpm kernel-debug-2.6.18-53.1.6.el5.i686.rpm kernel-debug-debuginfo-2.6.18-53.1.6.el5.i686.rpm kernel-debug-devel-2.6.18-53.1.6.el5.i686.rpm kernel-debuginfo-2.6.18-53.1.6.el5.i686.rpm kernel-debuginfo-common-2.6.18-53.1.6.el5.i686.rpm kernel-devel-2.6.18-53.1.6.el5.i686.rpm kernel-headers-2.6.18-53.1.6.el5.i386.rpm kernel-xen-2.6.18-53.1.6.el5.i686.rpm kernel-xen-debuginfo-2.6.18-53.1.6.el5.i686.rpm kernel-xen-devel-2.6.18-53.1.6.el5.i686.rpm ia64: kernel-2.6.18-53.1.6.el5.ia64.rpm kernel-debug-2.6.18-53.1.6.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-53.1.6.el5.ia64.rpm kernel-debug-devel-2.6.18-53.1.6.el5.ia64.rpm kernel-debuginfo-2.6.18-53.1.6.el5.ia64.rpm kernel-debuginfo-common-2.6.18-53.1.6.el5.ia64.rpm kernel-devel-2.6.18-53.1.6.el5.ia64.rpm kernel-headers-2.6.18-53.1.6.el5.ia64.rpm kernel-xen-2.6.18-53.1.6.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-53.1.6.el5.ia64.rpm kernel-xen-devel-2.6.18-53.1.6.el5.ia64.rpm noarch: kernel-doc-2.6.18-53.1.6.el5.noarch.rpm ppc: kernel-2.6.18-53.1.6.el5.ppc64.rpm kernel-debug-2.6.18-53.1.6.el5.ppc64.rpm kernel-debug-debuginfo-2.6.18-53.1.6.el5.ppc64.rpm kernel-debug-devel-2.6.18-53.1.6.el5.ppc64.rpm kernel-debuginfo-2.6.18-53.1.6.el5.ppc64.rpm kernel-debuginfo-common-2.6.18-53.1.6.el5.ppc64.rpm kernel-devel-2.6.18-53.1.6.el5.ppc64.rpm kernel-headers-2.6.18-53.1.6.el5.ppc.rpm kernel-headers-2.6.18-53.1.6.el5.ppc64.rpm kernel-kdump-2.6.18-53.1.6.el5.ppc64.rpm kernel-kdump-debuginfo-2.6.18-53.1.6.el5.ppc64.rpm kernel-kdump-devel-2.6.18-53.1.6.el5.ppc64.rpm s390x: kernel-2.6.18-53.1.6.el5.s390x.rpm kernel-debug-2.6.18-53.1.6.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-53.1.6.el5.s390x.rpm kernel-debug-devel-2.6.18-53.1.6.el5.s390x.rpm kernel-debuginfo-2.6.18-53.1.6.el5.s390x.rpm kernel-debuginfo-common-2.6.18-53.1.6.el5.s390x.rpm kernel-devel-2.6.18-53.1.6.el5.s390x.rpm kernel-headers-2.6.18-53.1.6.el5.s390x.rpm x86_64: kernel-2.6.18-53.1.6.el5.x86_64.rpm kernel-debug-2.6.18-53.1.6.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-53.1.6.el5.x86_64.rpm kernel-debug-devel-2.6.18-53.1.6.el5.x86_64.rpm kernel-debuginfo-2.6.18-53.1.6.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-53.1.6.el5.x86_64.rpm kernel-devel-2.6.18-53.1.6.el5.x86_64.rpm kernel-headers-2.6.18-53.1.6.el5.x86_64.rpm kernel-xen-2.6.18-53.1.6.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-53.1.6.el5.x86_64.rpm kernel-xen-devel-2.6.18-53.1.6.el5.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://www.redhat.com/security/team/key/#package 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3104 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5904 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6206 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6416 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0001 http://www.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2008 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFHl1vwXlSAg2UNWIIRArj/AJ9qp2MaYvZQs7WpwkZjmT94jdG/OACgs5wt hasLy+ttzbmAZwdfFx5N4ns= =s3Zs - -----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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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBR5fdjCh9+71yA2DNAQIttAP/XxuZ5HqGx+6O48o6t7AE/Cl5ZpzuhMzw TlOwruXEwjNbtanJSNLXW+HNn1Io1N5eA4QiA3Aiw7pKU9tClOkqkI9XJe6/I+ZC vfcDXbQfsFZpLPqogl61qMBElXhSEIujGxXp+tm9KtgJ4FkGuwadcpgTODb+T/Wc MDIpRXC0AIE= =4ARi -----END PGP SIGNATURE-----