RedHat: RHSA-2015-1534:01 Moderate: kernel security and bug fix update

    Date05 Aug 2015
    CategoryRed Hat
    29
    Posted ByLinuxSecurity Advisories
    Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Moderate: kernel security and bug fix update
    Advisory ID:       RHSA-2015:1534-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://rhn.redhat.com/errata/RHSA-2015-1534.html
    Issue date:        2015-08-05
    CVE Names:         CVE-2014-9715 CVE-2015-2666 CVE-2015-2922 
                       CVE-2015-3636 
    =====================================================================
    
    1. Summary:
    
    Updated kernel packages that fix multiple security issues and several bugs
    are now available for Red Hat Enterprise Linux 7.
    
    Red Hat Product Security 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 Client (v. 7) - noarch, x86_64
    Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
    Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
    Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
    Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
    Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
    Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
    Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
    
    3. Description:
    
    The kernel packages contain the Linux kernel, the core of any Linux
    operating system.
    
    * An integer overflow flaw was found in the way the Linux kernel's
    netfilter connection tracking implementation loaded extensions. An attacker
    on a local network could potentially send a sequence of specially crafted
    packets that would initiate the loading of a large number of extensions,
    causing the targeted system in that network to crash. (CVE-2014-9715,
    Moderate)
    
    * A stack-based buffer overflow flaw was found in the Linux kernel's early
    load microcode functionality. On a system with UEFI Secure Boot enabled, a
    local, privileged user could use this flaw to increase their privileges to
    the kernel (ring0) level, bypassing intended restrictions in place.
    (CVE-2015-2666, Moderate)
    
    * It was found that the Linux kernel's ping socket implementation did not
    properly handle socket unhashing during spurious disconnects, which could
    lead to a use-after-free flaw. On x86-64 architecture systems, a local user
    able to create ping sockets could use this flaw to crash the system.
    On non-x86-64 architecture systems, a local user able to create ping
    sockets could use this flaw to escalate their privileges on the system.
    (CVE-2015-3636, Moderate)
    
    * It was found that the Linux kernel's TCP/IP protocol suite implementation
    for IPv6 allowed the Hop Limit value to be set to a smaller value than the
    default one. An attacker on a local network could use this flaw to prevent
    systems on that network from sending or receiving network packets.
    (CVE-2015-2922, Low)
    
    Red Hat would like to thank Nathan Hoad for reporting the CVE-2014-9715
    issue.
    
    This update also fixes several bugs. Refer to the following Knowledgebase
    article for further information:
    
    https://access.redhat.com/articles/1474193
    
    All kernel users are advised to upgrade to these updated packages, which
    contain backported patches to correct these issues. 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.
    
    For details on how to apply this update, refer to:
    
    https://access.redhat.com/articles/11258
    
    5. Bugs fixed (https://bugzilla.redhat.com/):
    
    1203712 - CVE-2015-2922 kernel: denial of service (DoS) attack against IPv6 network stacks due to improper handling of Router Advertisements.
    1204722 - CVE-2015-2666 kernel: execution in the early microcode loader
    1208684 - CVE-2014-9715 kernel: netfilter connection tracking extensions denial of service
    1218074 - CVE-2015-3636 kernel: ping sockets: use-after-free leading to local privilege escalation
    
    6. Package List:
    
    Red Hat Enterprise Linux Client (v. 7):
    
    Source:
    kernel-3.10.0-229.11.1.el7.src.rpm
    
    noarch:
    kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm
    kernel-doc-3.10.0-229.11.1.el7.noarch.rpm
    
    x86_64:
    kernel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-devel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-headers-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm
    perf-3.10.0-229.11.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    
    Red Hat Enterprise Linux Client Optional (v. 7):
    
    x86_64:
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-libs-devel-3.10.0-229.11.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    
    Red Hat Enterprise Linux ComputeNode (v. 7):
    
    Source:
    kernel-3.10.0-229.11.1.el7.src.rpm
    
    noarch:
    kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm
    kernel-doc-3.10.0-229.11.1.el7.noarch.rpm
    
    x86_64:
    kernel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-devel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-headers-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm
    perf-3.10.0-229.11.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    
    Red Hat Enterprise Linux ComputeNode Optional (v. 7):
    
    x86_64:
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-libs-devel-3.10.0-229.11.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    
    Red Hat Enterprise Linux Server (v. 7):
    
    Source:
    kernel-3.10.0-229.11.1.el7.src.rpm
    
    noarch:
    kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm
    kernel-doc-3.10.0-229.11.1.el7.noarch.rpm
    
    ppc64:
    kernel-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-bootwrapper-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-debug-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-debug-devel-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-debuginfo-common-ppc64-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-devel-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-headers-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-tools-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-tools-libs-3.10.0-229.11.1.el7.ppc64.rpm
    perf-3.10.0-229.11.1.el7.ppc64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    
    s390x:
    kernel-3.10.0-229.11.1.el7.s390x.rpm
    kernel-debug-3.10.0-229.11.1.el7.s390x.rpm
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    kernel-debug-devel-3.10.0-229.11.1.el7.s390x.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    kernel-debuginfo-common-s390x-3.10.0-229.11.1.el7.s390x.rpm
    kernel-devel-3.10.0-229.11.1.el7.s390x.rpm
    kernel-headers-3.10.0-229.11.1.el7.s390x.rpm
    kernel-kdump-3.10.0-229.11.1.el7.s390x.rpm
    kernel-kdump-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    kernel-kdump-devel-3.10.0-229.11.1.el7.s390x.rpm
    perf-3.10.0-229.11.1.el7.s390x.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    
    x86_64:
    kernel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-devel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-headers-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm
    perf-3.10.0-229.11.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    
    Red Hat Enterprise Linux Server (v. 7):
    
    Source:
    kernel-3.10.0-229.11.1.ael7b.src.rpm
    
    noarch:
    kernel-abi-whitelists-3.10.0-229.11.1.ael7b.noarch.rpm
    kernel-doc-3.10.0-229.11.1.ael7b.noarch.rpm
    
    ppc64le:
    kernel-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-bootwrapper-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-debug-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-debug-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-debuginfo-common-ppc64le-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-devel-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-headers-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-tools-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-tools-libs-3.10.0-229.11.1.ael7b.ppc64le.rpm
    perf-3.10.0-229.11.1.ael7b.ppc64le.rpm
    perf-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    python-perf-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    
    Red Hat Enterprise Linux Server Optional (v. 7):
    
    ppc64:
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-debuginfo-common-ppc64-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    kernel-tools-libs-devel-3.10.0-229.11.1.el7.ppc64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    python-perf-3.10.0-229.11.1.el7.ppc64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.ppc64.rpm
    
    s390x:
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    kernel-debuginfo-common-s390x-3.10.0-229.11.1.el7.s390x.rpm
    kernel-kdump-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    python-perf-3.10.0-229.11.1.el7.s390x.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.s390x.rpm
    
    x86_64:
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-libs-devel-3.10.0-229.11.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    
    Red Hat Enterprise Linux Server Optional (v. 7):
    
    ppc64le:
    kernel-debug-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-debug-devel-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-debuginfo-common-ppc64le-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    kernel-tools-libs-devel-3.10.0-229.11.1.ael7b.ppc64le.rpm
    perf-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    python-perf-3.10.0-229.11.1.ael7b.ppc64le.rpm
    python-perf-debuginfo-3.10.0-229.11.1.ael7b.ppc64le.rpm
    
    Red Hat Enterprise Linux Workstation (v. 7):
    
    Source:
    kernel-3.10.0-229.11.1.el7.src.rpm
    
    noarch:
    kernel-abi-whitelists-3.10.0-229.11.1.el7.noarch.rpm
    kernel-doc-3.10.0-229.11.1.el7.noarch.rpm
    
    x86_64:
    kernel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debug-devel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-devel-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-headers-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-libs-3.10.0-229.11.1.el7.x86_64.rpm
    perf-3.10.0-229.11.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    
    Red Hat Enterprise Linux Workstation Optional (v. 7):
    
    x86_64:
    kernel-debug-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-debuginfo-common-x86_64-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    kernel-tools-libs-devel-3.10.0-229.11.1.el7.x86_64.rpm
    perf-debuginfo-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-3.10.0-229.11.1.el7.x86_64.rpm
    python-perf-debuginfo-3.10.0-229.11.1.el7.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/
    
    7. References:
    
    https://access.redhat.com/security/cve/CVE-2014-9715
    https://access.redhat.com/security/cve/CVE-2015-2666
    https://access.redhat.com/security/cve/CVE-2015-2922
    https://access.redhat.com/security/cve/CVE-2015-3636
    https://access.redhat.com/security/updates/classification/#moderate
    https://access.redhat.com/articles/1474193
    
    8. Contact:
    
    The Red Hat security contact is . More contact
    details at https://access.redhat.com/security/team/contact/
    
    Copyright 2015 Red Hat, Inc.
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