RedHat: RHSA-2020-0100:01 Important: kernel-rt security and bug fix update

    Date13 Jan 2020
    288
    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
    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA256
    
    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Important: kernel-rt security and bug fix update
    Advisory ID:       RHSA-2020:0100-01
    Product:           Red Hat Enterprise MRG for RHEL-6
    Advisory URL:      https://access.redhat.com/errata/RHSA-2020:0100
    Issue date:        2020-01-14
    CVE Names:         CVE-2018-18281 CVE-2018-20856 CVE-2019-11599 
    =====================================================================
    
    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: Use-after-free in __blk_drain_queue() function in
    block/blk-core.c (CVE-2018-20856)
    
    * kernel: TLB flush happens too late on mremap (CVE-2018-18281)
    
    * kernel: fix race condition between mmget_not_zero()/get_task_mm() and
    core dumping (CVE-2019-11599)
    
    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):
    
    * update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1779367)
    
    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/):
    
    1645121 - CVE-2018-18281 kernel: TLB flush happens too late on mremap
    1705937 - CVE-2019-11599 kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
    1738705 - CVE-2018-20856 kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c
    1779367 - 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-3.10.0-693.62.1.rt56.659.el6rt.src.rpm
    
    noarch:
    kernel-rt-doc-3.10.0-693.62.1.rt56.659.el6rt.noarch.rpm
    kernel-rt-firmware-3.10.0-693.62.1.rt56.659.el6rt.noarch.rpm
    
    x86_64:
    kernel-rt-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-debug-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-debug-debuginfo-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-debug-devel-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-debuginfo-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-debuginfo-common-x86_64-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-devel-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-trace-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-trace-debuginfo-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-trace-devel-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-vanilla-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-vanilla-debuginfo-3.10.0-693.62.1.rt56.659.el6rt.x86_64.rpm
    kernel-rt-vanilla-devel-3.10.0-693.62.1.rt56.659.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-2018-18281
    https://access.redhat.com/security/cve/CVE-2018-20856
    https://access.redhat.com/security/cve/CVE-2019-11599
    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 2020 Red Hat, Inc.
    -----BEGIN PGP SIGNATURE-----
    Version: GnuPG v1
    
    iQIVAwUBXh12MtzjgjWX9erEAQjtWBAAh5K8Ruvl6tD2ACeBGlxi7ljhIXffbMU0
    aCgpYa/lCMuhiUoMuSG49bCBuE0jLSxLK9QWa4ksEyBySQv6QNb9huOImDx7ELVh
    qAEgYyU7vW/T9p2gGnFeO9FE9HtHG1xWe8y45vyyDkbq+zUFaEQdFC/8UGQA1TII
    ALk8uBQ+4A9j6A0ukSGeAt2Te8ra0gp/VXYVP7TRrNBTEvshdFThiyYcTYqmGNz1
    LtmlUj9lSEuwKn5yjjq3VYcfUe0xe9Sdyr70g7YJKWw9DwgDLKTte6wHmrUw85Ah
    7Nix7UD+ycMSBIckUTqeysbrG1zfTWclRNRAIeESg4ky0CmlLqSL2UKPDsy4StAs
    N4Ufue4uryLpQlQY0JGk8TbSxjsE5ZMIVUCj9RTnAlSDSM+V0p1f0cftJhiUgj6I
    7uRqCABnOySogupuQoWkXUYfgwkwJ920x0HdIHoVK1NubQJug74FYRjRnGGXGjAP
    aaMf9rFfQmR7XSYiNZeRWumaUoTNrkK91fsVocZeqOkb1/Dcv5eW9LtsMW3s/5qz
    cdSCnggFg0eCspJTNbBe8sSrOI7RS229YqFqBDy78+ESZEOULAyqxQMD8KWyQc7P
    GPa89I4OQUQMgsYlOz1qx9IG97oY0KLDKlh4oGZ2AYHQxFImxLXKB4II3EQ/eXKk
    sXlKGoU0QJI=
    =uCtl
    -----END PGP SIGNATURE-----
    
    --
    RHSA-announce mailing list
    This email address is being protected from spambots. You need JavaScript enabled to view it.%MINIFYHTML3697173d44bc0bffc92bbb75d562f29013%https://www.redhat.com/mailman/listinfo/rhsa-announce
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the LinuxSecurity Privacy news articles?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/25-what-do-you-think-of-the-linuxsecurity-privacy-news-articles?task=poll.vote&format=json
    25
    radio
    [{"id":"90","title":"Love them!","votes":"35","type":"x","order":"1","pct":92.11,"resources":[]},{"id":"91","title":"I'm indifferent","votes":"2","type":"x","order":"2","pct":5.26,"resources":[]},{"id":"92","title":"Not interested in this topic","votes":"1","type":"x","order":"3","pct":2.63,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.