RedHat: RHSA-2019-3089:01 Important: kernel-rt security and bug fix update

    Date15 Oct 2019
    CategoryRed Hat
    772
    Posted ByLinuxSecurity Advisories
    Redhat Large
    An update for kernel-rt is now available for Red Hat Enterprise Linux 7. 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-2019:3089-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2019:3089
    Issue date:        2019-10-16
    CVE Names:         CVE-2018-20856 CVE-2019-3846 CVE-2019-9506 
                       CVE-2019-10126 
    =====================================================================
    
    1. Summary:
    
    An update for kernel-rt is now available for Red Hat Enterprise Linux 7.
    
    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 Enterprise Linux Realtime (v. 7) - noarch, x86_64
    Red Hat Enterprise Linux for Real Time for NFV (v. 7) - 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: Use-after-free in __blk_drain_queue() function in
    block/blk-core.c (CVE-2018-20856)
    
    * kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in
    marvell/mwifiex/scan.c (CVE-2019-3846)
    
    * hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB)
    (CVE-2019-9506)
    
    * kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in
    drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)
    
    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):
    
    * kernel-rt: update to the RHEL7.7.z batch#2 source tree (BZ#1748570)
    
    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/):
    
    1713059 - CVE-2019-3846 kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c
    1716992 - CVE-2019-10126 kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c
    1727857 - CVE-2019-9506 hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB)
    1738705 - CVE-2018-20856 kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c
    1748570 - kernel-rt: update to the RHEL7.7.z batch#2 source tree
    
    6. Package List:
    
    Red Hat Enterprise Linux for Real Time for NFV (v. 7):
    
    Source:
    kernel-rt-3.10.0-1062.4.1.rt56.1027.el7.src.rpm
    
    noarch:
    kernel-rt-doc-3.10.0-1062.4.1.rt56.1027.el7.noarch.rpm
    
    x86_64:
    kernel-rt-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debug-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debug-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debug-devel-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debug-kvm-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debug-kvm-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debuginfo-common-x86_64-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-devel-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-kvm-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-kvm-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-trace-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-trace-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-trace-devel-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-trace-kvm-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-trace-kvm-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    
    Red Hat Enterprise Linux Realtime (v. 7):
    
    Source:
    kernel-rt-3.10.0-1062.4.1.rt56.1027.el7.src.rpm
    
    noarch:
    kernel-rt-doc-3.10.0-1062.4.1.rt56.1027.el7.noarch.rpm
    
    x86_64:
    kernel-rt-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debug-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debug-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debug-devel-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-debuginfo-common-x86_64-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-devel-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-trace-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-trace-debuginfo-3.10.0-1062.4.1.rt56.1027.el7.x86_64.rpm
    kernel-rt-trace-devel-3.10.0-1062.4.1.rt56.1027.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-2018-20856
    https://access.redhat.com/security/cve/CVE-2019-3846
    https://access.redhat.com/security/cve/CVE-2019-9506
    https://access.redhat.com/security/cve/CVE-2019-10126
    https://access.redhat.com/security/updates/classification/#important
    
    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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