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    RedHat: RHSA-2020-3221:01 Important: kernel-rt security and bug fix update

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    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-2020:3221-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3221
    Issue date:        2020-07-29
    CVE Names:         CVE-2019-19527 CVE-2020-10757 CVE-2020-12653 
                       CVE-2020-12654 
    =====================================================================
    
    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: kernel: DAX hugepages not considered during mremap
    (CVE-2020-10757)
    
    * kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in
    drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)
    
    * kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function
    in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)
    
    * kernel: use-after-free caused by a malicious USB device in the
    drivers/hid/usbhid/hiddev.c driver (CVE-2019-19527)
    
    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: provide infrastructure to support dual-signing of the kernel
    (foundation to help address CVE-2020-10713) (BZ#1837438)
    
    * kernel-rt: update to the latest RHEL7.8.z3 source tree (BZ#1848017)
    
    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/):
    
    1783498 - CVE-2019-19527 kernel: use-after-free caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver
    1831868 - CVE-2020-12653 kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c
    1832530 - CVE-2020-12654 kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c
    1842525 - CVE-2020-10757 kernel: kernel: DAX hugepages not considered during mremap
    
    6. Package List:
    
    Red Hat Enterprise Linux for Real Time for NFV (v. 7):
    
    Source:
    kernel-rt-3.10.0-1127.18.2.rt56.1116.el7.src.rpm
    
    noarch:
    kernel-rt-doc-3.10.0-1127.18.2.rt56.1116.el7.noarch.rpm
    
    x86_64:
    kernel-rt-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-devel-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-kvm-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-kvm-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debuginfo-common-x86_64-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-devel-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-kvm-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-kvm-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-devel-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-kvm-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-kvm-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    
    Red Hat Enterprise Linux Realtime (v. 7):
    
    Source:
    kernel-rt-3.10.0-1127.18.2.rt56.1116.el7.src.rpm
    
    noarch:
    kernel-rt-doc-3.10.0-1127.18.2.rt56.1116.el7.noarch.rpm
    
    x86_64:
    kernel-rt-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-devel-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debug-kvm-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-debuginfo-common-x86_64-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-devel-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-kvm-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-debuginfo-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-devel-3.10.0-1127.18.2.rt56.1116.el7.x86_64.rpm
    kernel-rt-trace-kvm-debuginfo-3.10.0-1127.18.2.rt56.1116.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-2019-19527
    https://access.redhat.com/security/cve/CVE-2020-10757
    https://access.redhat.com/security/cve/CVE-2020-12653
    https://access.redhat.com/security/cve/CVE-2020-12654
    https://access.redhat.com/security/updates/classification/#important
    https://access.redhat.com/security/vulnerabilities/grub2bootloader
    
    8. Contact:
    
    The Red Hat security contact is . More contact
    details at https://access.redhat.com/security/team/contact/
    
    Copyright 2020 Red Hat, Inc.
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