RedHat: RHSA-2019-2730:01 Important: kernel-rt security and bug fix update

    Date11 Sep 2019
    CategoryRed Hat
    769
    Posted ByLinuxSecurity Advisories
    An update for kernel-rt is now available for Red Hat Enterprise MRG 2. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Important: kernel-rt security and bug fix update
    Advisory ID:       RHSA-2019:2730-01
    Product:           Red Hat Enterprise MRG for RHEL-6
    Advisory URL:      https://access.redhat.com/errata/RHSA-2019:2730
    Issue date:        2019-09-11
    CVE Names:         CVE-2018-9568 CVE-2018-13405 CVE-2018-16871 
                       CVE-2018-16884 CVE-2019-1125 
    =====================================================================
    
    1. Summary:
    
    An update for kernel-rt is now available for Red Hat Enterprise MRG 2.
    
    Red Hat Product Security has rated this update as having a security impact
    of Important. A Common Vulnerability Scoring System (CVSS) base score,
    which gives a detailed severity rating, is available for each vulnerability
    from the CVE link(s) in the References section.
    
    2. Relevant releases/architectures:
    
    Red Hat MRG Realtime for RHEL 6 Server v.2 - noarch, x86_64
    
    3. Description:
    
    The kernel-rt packages provide the Real Time Linux Kernel, which enables
    fine-tuning for systems with extremely high determinism requirements.
    
    Security Fix(es):
    
    * kernel: Memory corruption due to incorrect socket cloning (CVE-2018-9568)
    
    * kernel: Missing check in fs/inode.c:inode_init_owner() does not clear
    SGID bit on non-directories for non-members (CVE-2018-13405)
    
    * kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)
    
    * kernel: nfs: NULL pointer dereference due to an anomalized NFS message
    sequence (CVE-2018-16871)
    
    * kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)
    
    For more details about the security issue(s), including the impact, a CVSS
    score, acknowledgments, and other related information, refer to the CVE
    page(s) listed in the References section.
    
    Bug Fix(es):
    
    * Backport TCP follow-up for small buffers [mrg-r] (BZ#1732110)
    
    * update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1734469)
    
    4. Solution:
    
    For details on how to apply this update, which includes the changes
    described in this advisory, refer to:
    
    https://access.redhat.com/articles/11258
    
    The system must be rebooted for this update to take effect.
    
    5. Bugs fixed (https://bugzilla.redhat.com/):
    
    1599161 - CVE-2018-13405 kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members
    1655162 - CVE-2018-16871 kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence
    1655904 - CVE-2018-9568 kernel: Memory corruption due to incorrect socket cloning
    1660375 - CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common()
    1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability
    1734469 - update the MRG 2.5.z 3.10 realtime-kernel sources
    
    6. Package List:
    
    Red Hat MRG Realtime for RHEL 6 Server v.2:
    
    Source:
    kernel-rt-3.10.0-693.58.1.rt56.652.el6rt.src.rpm
    
    noarch:
    kernel-rt-doc-3.10.0-693.58.1.rt56.652.el6rt.noarch.rpm
    kernel-rt-firmware-3.10.0-693.58.1.rt56.652.el6rt.noarch.rpm
    
    x86_64:
    kernel-rt-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-debug-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-debug-debuginfo-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-debug-devel-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-debuginfo-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-debuginfo-common-x86_64-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-devel-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-trace-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-trace-debuginfo-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-trace-devel-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-vanilla-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-vanilla-debuginfo-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
    kernel-rt-vanilla-devel-3.10.0-693.58.1.rt56.652.el6rt.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-2018-9568
    https://access.redhat.com/security/cve/CVE-2018-13405
    https://access.redhat.com/security/cve/CVE-2018-16871
    https://access.redhat.com/security/cve/CVE-2018-16884
    https://access.redhat.com/security/cve/CVE-2019-1125
    https://access.redhat.com/security/updates/classification/#important
    https://access.redhat.com/articles/4329821
    
    8. Contact:
    
    The Red Hat security contact is . More contact
    details at https://access.redhat.com/security/team/contact/
    
    Copyright 2019 Red Hat, Inc.
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