[RHSA-2011:0303-01] Moderate: kernel security and bug fix update

Fabricante: RedHat
Fecha: 01/03/2011
Identificador: RHSA-2011:0303-01
[RHSA-2011:0303-01] Moderate: kernel security and bug fix update
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel security and bug fix update Advisory ID: RHSA-2011:0303-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0303.html Issue date: 2011-03-01 CVE Names: CVE-2010-4249 CVE-2010-4251 CVE-2010-4655 ===================================================================== 1. Summary: Updated kernel packages that fix three security issues and several bugs are now available for Red Hat Enterprise Linux 5. 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 (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * A flaw was found in the Linux kernel's garbage collector for AF_UNIX sockets. A local, unprivileged user could use this flaw to trigger a denial of service (out-of-memory condition). (CVE-2010-4249, Moderate) * A flaw was found in the Linux kernel's networking subsystem. If the number of packets received exceeded the receiver's buffer limit, they were queued in a backlog, consuming memory, instead of being discarded. A remote attacker could abuse this flaw to cause a denial of service (out-of-memory condition). (CVE-2010-4251, Moderate) * A missing initialization flaw was found in the ethtool_get_regs() function in the Linux kernel's ethtool IOCTL handler. A local user who has the CAP_NET_ADMIN capability could use this flaw to cause an information leak. (CVE-2010-4655, Low) Red Hat would like to thank Vegard Nossum for reporting CVE-2010-4249, and Kees Cook for reporting CVE-2010-4655. This update also fixes several bugs. Documentation for these bug fixes will be available shortly from the Technical Notes document linked to in the References section. Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect. 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 To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system. 5. Bugs fixed (http://bugzilla.redhat.com/): 656756 - CVE-2010-4249 kernel: unix socket local dos 657303 - CVE-2010-4251 kernel: multicast IPv4 traffic on hipersockets device DoS 668976 - a test unit ready causes a panic on 5.6 (CCISS driver) [rhel-5.6.z] 669300 - Fix shrinking windows with window scaling [rhel-5.6.z] 670797 - panic in kfree() due to race condition in acpi_bus_receive_event() [rhel-5.6.z] 670807 - e1000 driver tracebacks when running under VMware ESX4 [rhel-5.6.z] 672428 - CVE-2010-4655 kernel: heap contents leak for CAP_NET_ADMIN via ethtool ioctl 673983 - virtio_console driver never returns from selecting for write when the queue is full [rhel-5.6.z] 674273 - Flapping errors (and panic) with bonding and arp_interval while using be2net included in 2.6.18-238 [rhel-5.6.z] 678613 - vdso gettimeofday causes a segmentation fault [rhel-5.6.z] 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-2.6.18-238.5.1.el5.src.rpm i386: kernel-2.6.18-238.5.1.el5.i686.rpm kernel-PAE-2.6.18-238.5.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-238.5.1.el5.i686.rpm kernel-PAE-devel-2.6.18-238.5.1.el5.i686.rpm kernel-debug-2.6.18-238.5.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-238.5.1.el5.i686.rpm kernel-debug-devel-2.6.18-238.5.1.el5.i686.rpm kernel-debuginfo-2.6.18-238.5.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-238.5.1.el5.i686.rpm kernel-devel-2.6.18-238.5.1.el5.i686.rpm kernel-headers-2.6.18-238.5.1.el5.i386.rpm kernel-xen-2.6.18-238.5.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-238.5.1.el5.i686.rpm kernel-xen-devel-2.6.18-238.5.1.el5.i686.rpm noarch: kernel-doc-2.6.18-238.5.1.el5.noarch.rpm x86_64: kernel-2.6.18-238.5.1.el5.x86_64.rpm kernel-debug-2.6.18-238.5.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-238.5.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-238.5.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-238.5.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-238.5.1.el5.x86_64.rpm kernel-devel-2.6.18-238.5.1.el5.x86_64.rpm kernel-headers-2.6.18-238.5.1.el5.x86_64.rpm kernel-xen-2.6.18-238.5.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-238.5.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-238.5.1.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-2.6.18-238.5.1.el5.src.rpm i386: kernel-2.6.18-238.5.1.el5.i686.rpm kernel-PAE-2.6.18-238.5.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-238.5.1.el5.i686.rpm kernel-PAE-devel-2.6.18-238.5.1.el5.i686.rpm kernel-debug-2.6.18-238.5.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-238.5.1.el5.i686.rpm kernel-debug-devel-2.6.18-238.5.1.el5.i686.rpm kernel-debuginfo-2.6.18-238.5.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-238.5.1.el5.i686.rpm kernel-devel-2.6.18-238.5.1.el5.i686.rpm kernel-headers-2.6.18-238.5.1.el5.i386.rpm kernel-xen-2.6.18-238.5.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-238.5.1.el5.i686.rpm kernel-xen-devel-2.6.18-238.5.1.el5.i686.rpm ia64: kernel-2.6.18-238.5.1.el5.ia64.rpm kernel-debug-2.6.18-238.5.1.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-238.5.1.el5.ia64.rpm kernel-debug-devel-2.6.18-238.5.1.el5.ia64.rpm kernel-debuginfo-2.6.18-238.5.1.el5.ia64.rpm kernel-debuginfo-common-2.6.18-238.5.1.el5.ia64.rpm kernel-devel-2.6.18-238.5.1.el5.ia64.rpm kernel-headers-2.6.18-238.5.1.el5.ia64.rpm kernel-xen-2.6.18-238.5.1.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-238.5.1.el5.ia64.rpm kernel-xen-devel-2.6.18-238.5.1.el5.ia64.rpm noarch: kernel-doc-2.6.18-238.5.1.el5.noarch.rpm ppc: kernel-2.6.18-238.5.1.el5.ppc64.rpm kernel-debug-2.6.18-238.5.1.el5.ppc64.rpm kernel-debug-debuginfo-2.6.18-238.5.1.el5.ppc64.rpm kernel-debug-devel-2.6.18-238.5.1.el5.ppc64.rpm kernel-debuginfo-2.6.18-238.5.1.el5.ppc64.rpm kernel-debuginfo-common-2.6.18-238.5.1.el5.ppc64.rpm kernel-devel-2.6.18-238.5.1.el5.ppc64.rpm kernel-headers-2.6.18-238.5.1.el5.ppc.rpm kernel-headers-2.6.18-238.5.1.el5.ppc64.rpm kernel-kdump-2.6.18-238.5.1.el5.ppc64.rpm kernel-kdump-debuginfo-2.6.18-238.5.1.el5.ppc64.rpm kernel-kdump-devel-2.6.18-238.5.1.el5.ppc64.rpm s390x: kernel-2.6.18-238.5.1.el5.s390x.rpm kernel-debug-2.6.18-238.5.1.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-238.5.1.el5.s390x.rpm kernel-debug-devel-2.6.18-238.5.1.el5.s390x.rpm kernel-debuginfo-2.6.18-238.5.1.el5.s390x.rpm kernel-debuginfo-common-2.6.18-238.5.1.el5.s390x.rpm kernel-devel-2.6.18-238.5.1.el5.s390x.rpm kernel-headers-2.6.18-238.5.1.el5.s390x.rpm kernel-kdump-2.6.18-238.5.1.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-238.5.1.el5.s390x.rpm kernel-kdump-devel-2.6.18-238.5.1.el5.s390x.rpm x86_64: kernel-2.6.18-238.5.1.el5.x86_64.rpm kernel-debug-2.6.18-238.5.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-238.5.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-238.5.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-238.5.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-238.5.1.el5.x86_64.rpm kernel-devel-2.6.18-238.5.1.el5.x86_64.rpm kernel-headers-2.6.18-238.5.1.el5.x86_64.rpm kernel-xen-2.6.18-238.5.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-238.5.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-238.5.1.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://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2010-4249.html https://www.redhat.com/security/data/cve/CVE-2010-4251.html https://www.redhat.com/security/data/cve/CVE-2010-4655.html https://access.redhat.com/security/updates/classification/#moderate http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.6_Technical_Notes/kernel.html#RHSA-2011-0303 8. Contact: The Red Hat security contact is . More contact details at https://www.redhat.com/security/team/contact/ Copyright 2011 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFNbXcgXlSAg2UNWIIRAr0uAJwKZvZJ4Z6mPXHZNE73+vuJEZtqoQCfR6eq yLEklAnT8uIk2AmSg8uYVEQ= =srAl -----END PGP SIGNATURE-----