-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2011:0927-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0927.html Issue date: 2011-07-15 CVE Names: CVE-2010-4649 CVE-2011-0695 CVE-2011-0711 CVE-2011-1044 CVE-2011-1182 CVE-2011-1573 CVE-2011-1576 CVE-2011-1593 CVE-2011-1745 CVE-2011-1746 CVE-2011-1776 CVE-2011-1936 CVE-2011-2022 CVE-2011-2213 CVE-2011-2492 ===================================================================== 1. Summary: Updated kernel packages that fix multiple 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 important 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: * An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important) * A race condition in the way new InfiniBand connections were set up could allow a remote user to cause a denial of service. (CVE-2011-0695, Important) * A flaw in the Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl "net.sctp.addip_enable" variable was turned on (it is off by default). (CVE-2011-1573, Important) * Flaws in the AGPGART driver implementation when handling certain IOCTL commands could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, Important) * An integer overflow flaw in agp_allocate_memory() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1746, Important) * A flaw allowed napi_reuse_skb() to be called on VLAN (virtual LAN) packets. An attacker on the local network could trigger this flaw by sending specially-crafted packets to a target system, possibly causing a denial of service. (CVE-2011-1576, Moderate) * An integer signedness error in next_pidmap() could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1593, Moderate) * A flaw in the way the Xen hypervisor implementation handled CPUID instruction emulation during virtual machine exits could allow an unprivileged guest user to crash a guest. This only affects systems that have an Intel x86 processor with the Intel VT-x extension enabled. (CVE-2011-1936, Moderate) * A flaw in inet_diag_bc_audit() could allow a local, unprivileged user to cause a denial of service (infinite loop). (CVE-2011-2213, Moderate) * A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low) * A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low) * A missing validation check was found in the signals implementation. A local, unprivileged user could use this flaw to send signals via the sigqueueinfo system call, with the si_code set to SI_TKILL and with spoofed process and user IDs, to other processes. Note: This flaw does not allow existing permission checks to be bypassed; signals can only be sent if your privileges allow you to already do so. (CVE-2011-1182, Low) * A heap overflow flaw in the EFI GUID Partition Table (GPT) implementation could allow a local attacker to cause a denial of service by mounting a disk containing specially-crafted partition tables. (CVE-2011-1776, Low) * Structure padding in two structures in the Bluetooth implementation was not initialized properly before being copied to user-space, possibly allowing local, unprivileged users to leak kernel stack memory to user-space. (CVE-2011-2492, Low) Red Hat would like to thank Jens Kuehnel for reporting CVE-2011-0695; Vasiliy Kulikov for reporting CVE-2011-1745, CVE-2011-2022, and CVE-2011-1746; Ryan Sweat for reporting CVE-2011-1576; Robert Swiecki for reporting CVE-2011-1593; Dan Rosenberg for reporting CVE-2011-2213 and CVE-2011-0711; Julien Tinnes of the Google Security Team for reporting CVE-2011-1182; Timo Warns for reporting CVE-2011-1776; and Marek Kroemeke and Filip Palian for reporting CVE-2011-2492. Bug fix documentation will be available shortly from the Technical Notes document linked to in the References. 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/): 653648 - CVE-2011-0695 kernel: panic in ib_cm:cm_work_handler 667916 - CVE-2010-4649 CVE-2011-1044 kernel: IB/uverbs: Handle large number of entries in poll CQ 677260 - CVE-2011-0711 kernel: xfs: prevent leaking uninitialized stack memory in FSGEOMETRY_V1 690028 - CVE-2011-1182 kernel signal spoofing issue 695173 - CVE-2011-1576 kernel: net: Fix memory leak/corruption on VLAN GRO_DROP 695383 - CVE-2011-1573 kernel: sctp: fix to calc the INIT/INIT-ACK chunk length correctly to set 697822 - CVE-2011-1593 kernel: proc: signedness issue in next_pidmap() 698996 - CVE-2011-1745 CVE-2011-2022 kernel: agp: insufficient pg_start parameter checking in AGPIOC_BIND and AGPIOC_UNBIND ioctls 698998 - CVE-2011-1746 kernel: agp: insufficient page_count parameter checking in agp_allocate_memory() 703019 - CVE-2011-2492 kernel: bluetooth: l2cap and rfcomm: fix 1 byte infoleak to userspace 703026 - CVE-2011-1776 kernel: validate size of EFI GUID partition entries 703056 - [RHEL5.5] Panic in iscsi_sw_tcp_data_ready() [rhel-5.6.z] 706323 - CVE-2011-1936 kernel: xen: vmx: insecure cpuid vmexit 707899 - The pci resource for vf is not released after hot-removing Intel 82576 NIC [rhel-5.6.z] 711519 - GFS2: resource group bitmap corruption resulting in panics and withdraws 714536 - CVE-2011-2213 kernel: inet_diag: insufficient validation 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-2.6.18-238.19.1.el5.src.rpm i386: kernel-2.6.18-238.19.1.el5.i686.rpm kernel-PAE-2.6.18-238.19.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-238.19.1.el5.i686.rpm kernel-PAE-devel-2.6.18-238.19.1.el5.i686.rpm kernel-debug-2.6.18-238.19.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-238.19.1.el5.i686.rpm kernel-debug-devel-2.6.18-238.19.1.el5.i686.rpm kernel-debuginfo-2.6.18-238.19.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-238.19.1.el5.i686.rpm kernel-devel-2.6.18-238.19.1.el5.i686.rpm kernel-headers-2.6.18-238.19.1.el5.i386.rpm kernel-xen-2.6.18-238.19.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-238.19.1.el5.i686.rpm kernel-xen-devel-2.6.18-238.19.1.el5.i686.rpm noarch: kernel-doc-2.6.18-238.19.1.el5.noarch.rpm x86_64: kernel-2.6.18-238.19.1.el5.x86_64.rpm kernel-debug-2.6.18-238.19.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-238.19.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-238.19.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-238.19.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-238.19.1.el5.x86_64.rpm kernel-devel-2.6.18-238.19.1.el5.x86_64.rpm kernel-headers-2.6.18-238.19.1.el5.x86_64.rpm kernel-xen-2.6.18-238.19.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-238.19.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-238.19.1.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-2.6.18-238.19.1.el5.src.rpm i386: kernel-2.6.18-238.19.1.el5.i686.rpm kernel-PAE-2.6.18-238.19.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-238.19.1.el5.i686.rpm kernel-PAE-devel-2.6.18-238.19.1.el5.i686.rpm kernel-debug-2.6.18-238.19.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-238.19.1.el5.i686.rpm kernel-debug-devel-2.6.18-238.19.1.el5.i686.rpm kernel-debuginfo-2.6.18-238.19.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-238.19.1.el5.i686.rpm kernel-devel-2.6.18-238.19.1.el5.i686.rpm kernel-headers-2.6.18-238.19.1.el5.i386.rpm kernel-xen-2.6.18-238.19.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-238.19.1.el5.i686.rpm kernel-xen-devel-2.6.18-238.19.1.el5.i686.rpm ia64: kernel-2.6.18-238.19.1.el5.ia64.rpm kernel-debug-2.6.18-238.19.1.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-238.19.1.el5.ia64.rpm kernel-debug-devel-2.6.18-238.19.1.el5.ia64.rpm kernel-debuginfo-2.6.18-238.19.1.el5.ia64.rpm kernel-debuginfo-common-2.6.18-238.19.1.el5.ia64.rpm kernel-devel-2.6.18-238.19.1.el5.ia64.rpm kernel-headers-2.6.18-238.19.1.el5.ia64.rpm kernel-xen-2.6.18-238.19.1.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-238.19.1.el5.ia64.rpm kernel-xen-devel-2.6.18-238.19.1.el5.ia64.rpm noarch: kernel-doc-2.6.18-238.19.1.el5.noarch.rpm ppc: kernel-2.6.18-238.19.1.el5.ppc64.rpm kernel-debug-2.6.18-238.19.1.el5.ppc64.rpm kernel-debug-debuginfo-2.6.18-238.19.1.el5.ppc64.rpm kernel-debug-devel-2.6.18-238.19.1.el5.ppc64.rpm kernel-debuginfo-2.6.18-238.19.1.el5.ppc64.rpm kernel-debuginfo-common-2.6.18-238.19.1.el5.ppc64.rpm kernel-devel-2.6.18-238.19.1.el5.ppc64.rpm kernel-headers-2.6.18-238.19.1.el5.ppc.rpm kernel-headers-2.6.18-238.19.1.el5.ppc64.rpm kernel-kdump-2.6.18-238.19.1.el5.ppc64.rpm kernel-kdump-debuginfo-2.6.18-238.19.1.el5.ppc64.rpm kernel-kdump-devel-2.6.18-238.19.1.el5.ppc64.rpm s390x: kernel-2.6.18-238.19.1.el5.s390x.rpm kernel-debug-2.6.18-238.19.1.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-238.19.1.el5.s390x.rpm kernel-debug-devel-2.6.18-238.19.1.el5.s390x.rpm kernel-debuginfo-2.6.18-238.19.1.el5.s390x.rpm kernel-debuginfo-common-2.6.18-238.19.1.el5.s390x.rpm kernel-devel-2.6.18-238.19.1.el5.s390x.rpm kernel-headers-2.6.18-238.19.1.el5.s390x.rpm kernel-kdump-2.6.18-238.19.1.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-238.19.1.el5.s390x.rpm kernel-kdump-devel-2.6.18-238.19.1.el5.s390x.rpm x86_64: kernel-2.6.18-238.19.1.el5.x86_64.rpm kernel-debug-2.6.18-238.19.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-238.19.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-238.19.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-238.19.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-238.19.1.el5.x86_64.rpm kernel-devel-2.6.18-238.19.1.el5.x86_64.rpm kernel-headers-2.6.18-238.19.1.el5.x86_64.rpm kernel-xen-2.6.18-238.19.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-238.19.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-238.19.1.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-2010-4649.html https://www.redhat.com/security/data/cve/CVE-2011-0695.html https://www.redhat.com/security/data/cve/CVE-2011-0711.html https://www.redhat.com/security/data/cve/CVE-2011-1044.html https://www.redhat.com/security/data/cve/CVE-2011-1182.html https://www.redhat.com/security/data/cve/CVE-2011-1573.html https://www.redhat.com/security/data/cve/CVE-2011-1576.html https://www.redhat.com/security/data/cve/CVE-2011-1593.html https://www.redhat.com/security/data/cve/CVE-2011-1745.html https://www.redhat.com/security/data/cve/CVE-2011-1746.html https://www.redhat.com/security/data/cve/CVE-2011-1776.html https://www.redhat.com/security/data/cve/CVE-2011-1936.html https://www.redhat.com/security/data/cve/CVE-2011-2022.html https://www.redhat.com/security/data/cve/CVE-2011-2213.html https://www.redhat.com/security/data/cve/CVE-2011-2492.html https://access.redhat.com/security/updates/classification/#important https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.6_Technical_Notes/kernel.html#RHSA-2011-0927 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) iD8DBQFOH9qRXlSAg2UNWIIRAjaUAJ0S0n+vF0EHrw02A8dlf76Pf3I7QQCgi8J5 ssh+iW4lgLvNHcwOjm51IzQ= =E4l0 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce